JPH1129556A - Bisbenzazole compound - Google Patents

Bisbenzazole compound

Info

Publication number
JPH1129556A
JPH1129556A JP10084757A JP8475798A JPH1129556A JP H1129556 A JPH1129556 A JP H1129556A JP 10084757 A JP10084757 A JP 10084757A JP 8475798 A JP8475798 A JP 8475798A JP H1129556 A JPH1129556 A JP H1129556A
Authority
JP
Japan
Prior art keywords
group
compound
mmol
alkyl
added
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP10084757A
Other languages
Japanese (ja)
Other versions
JP4669590B2 (en
Inventor
Tadahisa Sato
忠久 佐藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP08475798A priority Critical patent/JP4669590B2/en
Priority to US09/238,779 priority patent/US5998626A/en
Publication of JPH1129556A publication Critical patent/JPH1129556A/en
Application granted granted Critical
Publication of JP4669590B2 publication Critical patent/JP4669590B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To obtain a new compound useful as an organic electroluminescent material, by improving the stability of the element of a compound having a benzazole skeleton emitting strong fluorescence. SOLUTION: This compound is shown by formula I (R1 to R7 are each H, a halogen, an alkyl, an aryl, an alkoxy, amino or the like; (l) is >=1; (a) is 1-4; X1 and X2 are each an alkoxy, an aryloxy, a dialkylamino or the like; with the proviso that when (l) is 3, one or more of R1 to R7 are except H; Z1 and Z2 are each O, S) or formula II (R8 to R14 are each H, a halogen, an alkyl, an aryl, an alkoxy, amino or the like; (m) is >=1; (b) is 1-4; Y1 and Y2 are each an aryloxy, a dialkylamino or the like; Z3 and Z4 are each O, S or the like) such as a compound of formula III. The compound of formula I or formula II is obtained, for example, by a method for heating a compound of formula V, obtained from a compound of IV as a starting substance, in the presence of an acid to give the compound in which (l) is 1 or 2 in formula I.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明はビスベンゾアゾール
化合物に関する。詳しくは有機エレクトロルミネッセン
ス(EL)材料等に有用な新しいビスベンゾアゾール化
合物に関する。
TECHNICAL FIELD The present invention relates to a bisbenzoazole compound. Specifically, the present invention relates to a new bisbenzoazole compound useful for an organic electroluminescence (EL) material and the like.

【0002】[0002]

【従来の技術】タンらは例えば特開昭59−194,3
93号、同63−264,692号においてベンゾアゾ
ール骨格を有する化合物は内部接合有機EL素子の電子
注入、輸送帯域における電子伝達化合物及び発光化合物
として、または発光物質をドープしたホスト物質で有用
であることを開示している。しかしながら、これらの特
許に開示されているベンゾアゾール骨格を有する化合物
は強い蛍光を発する点では好ましい化合物であるが、真
空蒸着膜の安定性や、電子伝達性においては不十分であ
り、それ故に素子の安定性が実用にほど遠いものであっ
た。
2. Description of the Related Art Tan et al.
Nos. 93 and 63-264, 692, compounds having a benzoazole skeleton are useful as an electron transfer compound and a light emitting compound in an electron injection and transport band of an internal junction organic EL device, or as a host material doped with a light emitting material. It is disclosed that. However, the compounds having a benzoazole skeleton disclosed in these patents are preferred compounds in terms of emitting strong fluorescence, but are insufficient in the stability of vacuum-deposited films and in electron transferability, and therefore, are not suitable for devices. Was far from practical.

【0003】[0003]

【発明が解決しようとする課題】そこで本発明者は、強
い蛍光を発するという優れた特徴があるベンゾアゾール
骨格を有する化合物において、素子の安定性の向上を可
能とする分子構造を見出すことを目的として研究に取り
組んだ。
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to find a molecular structure that can improve the stability of an element in a compound having a benzoazole skeleton having an excellent feature of emitting strong fluorescence. Worked on the research.

【0004】[0004]

【課題を解決するための手段】その結果、ある種の置換
基を有するビスベンゾアゾール化合物が、この目的を達
成できる分子構造であることを見出した。本発明はその
知見に基づきなされたものである。すなわち本発明の目
的は新規化合物である、一般式(I)で表されるビスベ
ンゾアゾール化合物によって達成された。
As a result, it has been found that a bisbenzoazole compound having a certain kind of substituent has a molecular structure capable of achieving this object. The present invention has been made based on the findings. That is, the object of the present invention has been achieved by a novel compound, a bisbenzoazole compound represented by the general formula (I).

【0005】[0005]

【化3】 Embedded image

【0006】式中、R1 〜R7 は水素原子、ハロゲン原
子、アルキル基、アリール基、アルコキシ基、アリール
オキシ基、アミノ基、ジアルキルアミノ基、N−アルキ
ル−N−アリールアミノ基、ジアリールアミノ基又はシ
リル基を表わす。lは1以上の整数を表わし、aは1な
いし4の整数表わす。X1 およびX2 はアルコキシ基、
アリールオキシ基、ジアルキルアミノ基、N−アルキル
−N−アリールアミノ基又はジアリールアミノ基を表わ
す。但し、lが3の時R1 〜R7 の少なくとも1つは水
素原子以外の基を表わす。Z1 およびZ2 は酸素原子、
イオウ原子又は一置換の窒素原子を表わす。
In the formula, R 1 to R 7 are a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an amino group, a dialkylamino group, an N-alkyl-N-arylamino group, a diarylamino Represents a group or a silyl group. l represents an integer of 1 or more, and a represents an integer of 1 to 4. X 1 and X 2 are an alkoxy group,
Represents an aryloxy group, a dialkylamino group, an N-alkyl-N-arylamino group or a diarylamino group. However, when 1 is 3, at least one of R 1 to R 7 represents a group other than a hydrogen atom. Z 1 and Z 2 are oxygen atoms,
Represents a sulfur atom or a monosubstituted nitrogen atom.

【0007】[0007]

【化4】 Embedded image

【0008】式中、R8 〜R14は水素原子、ハロゲン原
子、アルキル基、アリール基、アルコキシ基、アリール
オキシ基、アミノ基、ジアルキルアミノ基、N−アルキ
ル−N−アリールアミノ基、ジアリールアミノ基又はシ
リル基を表わす。mは1以上の整数を表わし、bは1な
いし4の整数を表わす。Y1 およびY2 はアリールオキ
シ基、ジアルキルアミノ基、N−アルキル−N−アリー
ルアミノ基、又はジアリールアミノ基を表わす。Z3
よびZ4 は酸素原子、イオウ原子又は一置換の窒素原子
を表わす。
In the formula, R 8 to R 14 represent a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an amino group, a dialkylamino group, an N-alkyl-N-arylamino group, a diarylamino Represents a group or a silyl group. m represents an integer of 1 or more, and b represents an integer of 1 to 4. Y 1 and Y 2 represent an aryloxy group, a dialkylamino group, an N-alkyl-N-arylamino group, or a diarylamino group. Z 3 and Z 4 represent an oxygen atom, a sulfur atom or a monosubstituted nitrogen atom.

【0009】[0009]

【発明の実施の形態】以下、本発明の一般式(I)およ
び(II) で表される化合物について詳しく説明する。一
般式(I)および(II) におけるR1 〜R14は水素原
子、ハロゲン原子、アルキル基、アリール基、アルコキ
シ基、アリールオキシ基、ジアルキルアミノ基、N−ア
ルキル−N−アリールアミノ基、又はジアリールアミノ
基であり、これらについて詳しくは水素原子、フッ素、
塩素もしくは臭素等のハロゲン原子、置換もしくは無置
換の炭素数1〜12の直鎖もしくは分岐鎖のアルキル
基、置換もしくは無置換の炭素数6〜20のアリール
基、置換もしくは無置換の炭素数1〜6のアルコキシ
基、置換もしくは無置換の炭素数6〜20のアリールオ
キシ基、置換もしくは無置換の炭素数2〜16のジアル
キルアミノ基、置換もしくは無置換の炭素数7〜21の
N−アルキル−N−アリールアミノ基、又は置換もしく
は無置換の炭素数12〜36のジアリールアミノ基であ
る。これらの基は隣接する基同志が結合して飽和の環も
しくは不飽和の環(芳香族環など)を形成してもよい。
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the compounds represented by formulas (I) and (II) of the present invention will be described in detail. R 1 to R 14 in the general formulas (I) and (II) represent a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, a dialkylamino group, an N-alkyl-N-arylamino group, or A diarylamino group.
Halogen atom such as chlorine or bromine, substituted or unsubstituted linear or branched alkyl group having 1 to 12 carbon atoms, substituted or unsubstituted aryl group having 6 to 20 carbon atoms, substituted or unsubstituted 1 carbon atom To 6 alkoxy groups, substituted or unsubstituted aryloxy groups having 6 to 20 carbon atoms, substituted or unsubstituted dialkylamino groups having 2 to 16 carbon atoms, substituted or unsubstituted N-alkyl having 7 to 21 carbon atoms —N-arylamino group or substituted or unsubstituted diarylamino group having 12 to 36 carbon atoms. These groups may be combined with each other to form a saturated ring or an unsaturated ring (such as an aromatic ring).

【0010】水素原子、ハロゲン原子以外について更に
詳しく説明すると、メチル、エチル、n−プロピル、n
−オクチル、n−ドデシル、2−メトキシエチル、2−
フェニルメチル、ベンジル、イソプロピル、イソブチ
ル、s−ブチル、t−ブチル、t−アミル、t−オクチ
ル、シクロペンチル、シクロヘキシル、もしくはシクロ
ヘプチルなどのアルキル基、フェニル、2−,3−もく
しは4−メチルフェニル、4−t−ブチルフェニル、4
−メトキシフェニル、4−ジメチルアミノフェニル、1
−もしくは2−ナフチル、アンスリル、もくしはフェナ
ンスリルなどのアリール基、メトキシ、エトキシ、n−
プロポキシ、n−ブトキシ、n−ヘキシル、イソプロポ
キシ、イソブトキシ、t−ブトキシ、シクロペンチルオ
キシ、もしくはシクロヘキシルオキシなどのアルコキシ
基、フェノキシ、2−,3−もしくは4−メチルフェノ
キシ、4−t−ブチルフェノキシ、4−フェニルフェノ
キシ、4−メトキシフェノキシ、2−シクロヘキシルフ
ェノキシ、3−エチルフェノキシ、1−もしくは2−ナ
フトキシ、アンスリルオキシ、もしくはフェナンスリル
オキシなどのアリールオキシ基、ジメチルアミノ、ジエ
チルアミノ、ジブチルアミノ、ジオクチルアミノ、N−
メチルブチルアミノ、ビス(2−メトキシエチル)アミ
ノ、もしくはビス(2−クロロエチル)アミノなどのジ
アルキルアミノ基、N−メチルアニリノ、N−ブチルア
ニリノ、もしくはN−メチル−1−ナフチルアミノなど
のN−アルキル−N−アリールアミノ基、又はジフェニ
ルアミノ、N−(3−メチルフェニル)アニリノ、N−
(4−メチルフェニル)アニリノ、ビス(4−メチルフ
ェニル)アミノ、N−ナフチルアニリノ、もしくはジナ
フチルアミノなどのジアリールアミノ基である。
[0010] The hydrogen atom and the halogen atom other than the above will be described in more detail. Methyl, ethyl, n-propyl, n
-Octyl, n-dodecyl, 2-methoxyethyl, 2-
Alkyl groups such as phenylmethyl, benzyl, isopropyl, isobutyl, sec-butyl, t-butyl, t-amyl, t-octyl, cyclopentyl, cyclohexyl, and cycloheptyl; phenyl, 2-, 3- or 4-methyl Phenyl, 4-t-butylphenyl, 4
-Methoxyphenyl, 4-dimethylaminophenyl, 1
-Or 2-aryl groups such as naphthyl, anthryl, or phenanthryl, methoxy, ethoxy, n-
Alkoxy groups such as propoxy, n-butoxy, n-hexyl, isopropoxy, isobutoxy, t-butoxy, cyclopentyloxy or cyclohexyloxy, phenoxy, 2-, 3- or 4-methylphenoxy, 4-t-butylphenoxy, Aryloxy groups such as 4-phenylphenoxy, 4-methoxyphenoxy, 2-cyclohexylphenoxy, 3-ethylphenoxy, 1- or 2-naphthoxy, anthryloxy or phenanthryloxy, dimethylamino, diethylamino, dibutylamino, Dioctylamino, N-
A dialkylamino group such as methylbutylamino, bis (2-methoxyethyl) amino or bis (2-chloroethyl) amino; and an N-alkyl- such as N-methylanilino, N-butylanilino or N-methyl-1-naphthylamino. N-arylamino group, diphenylamino, N- (3-methylphenyl) anilino, N-
It is a diarylamino group such as (4-methylphenyl) anilino, bis (4-methylphenyl) amino, N-naphthylanilino, or dinaphthylamino.

【0011】R1 〜R14が置換基を有する場合の、置換
可能な基について詳しく述べると、ハロゲン原子、アル
キル基、アリール基、ヘテロ環基、シアノ基、ヒドロキ
シ基、ニトロ基、カルボキシル基、スルホ基、アミノ
基、アルコキシ基、アリールオキシ基、アシルアミノ
基、アルキルアミノ基、アニリノ基、ウレイド基、スル
ファモイルアミノ基、アルキルチオ基、アリールチオ
基、アルコキシカルボニルアミノ基、スルホンアミド
基、カルバモイル基、スルファモイル基、スルホニル
基、アルコキシカルボニル基、ヘテロ環オキシ基、アゾ
基、アシルオキシ基、カルバモイルオキシ基、シリルオ
キシ基、アリールオキシカルボニルアミノ基、イミド
基、ヘテロ環チオ基、スルフィニル基、ホスホニル基、
アリールオキシカルボニル基、アシル基、シリル基また
はアゾリル基などである。
When R 1 to R 14 have a substituent, the substitutable groups are described in detail as follows: halogen atom, alkyl group, aryl group, heterocyclic group, cyano group, hydroxy group, nitro group, carboxyl group, Sulfo group, amino group, alkoxy group, aryloxy group, acylamino group, alkylamino group, anilino group, ureido group, sulfamoylamino group, alkylthio group, arylthio group, alkoxycarbonylamino group, sulfonamide group, carbamoyl group, Sulfamoyl group, sulfonyl group, alkoxycarbonyl group, heterocyclic oxy group, azo group, acyloxy group, carbamoyloxy group, silyloxy group, aryloxycarbonylamino group, imide group, heterocyclic thio group, sulfinyl group, phosphonyl group,
Examples include an aryloxycarbonyl group, an acyl group, a silyl group, and an azolyl group.

【0012】好ましいR1 〜R14は水素原子又は無置換
のアルキル基であり、より好ましくは水素原子又は炭素
数1〜12の無置換のアルキル基である。特に好ましく
は水素原子又は炭素数1〜8の無置換アルキル基であ
る。
Preferred R 1 to R 14 are a hydrogen atom or an unsubstituted alkyl group, more preferably a hydrogen atom or an unsubstituted alkyl group having 1 to 12 carbon atoms. Particularly preferred is a hydrogen atom or an unsubstituted alkyl group having 1 to 8 carbon atoms.

【0013】一般式(I)におけるX1 およびX2 は、
アルコキシ基、アリールオキシ基、ジアルキルアミノ
基、N−アルキル−N−アリールアミノ基、又はジアリ
ールアミノ基を表わすが、これらの基は前記R1 〜R14
について説明した基と同義の基である。
X 1 and X 2 in the general formula (I) are
Represents an alkoxy group, an aryloxy group, a dialkylamino group, an N-alkyl-N-arylamino group, or a diarylamino group, and these groups are represented by R 1 to R 14
Is a group having the same meaning as the group described above.

【0014】好ましいX1 およびX2 はアルコキシ基、
ジアルキルアミノ基又はジアリールアミノ基である。
Preferred X 1 and X 2 are an alkoxy group,
It is a dialkylamino group or a diarylamino group.

【0015】一般式(II) におけるY1 およびY2 はア
リールオキシ基、ジアルキルアミノ基、N−アルキル−
N−アリールアミノ基又はジアリールアミノ基を表わす
が、これらの基は前記R1 〜R14について説明した基と
同義の基である。
In the general formula (II), Y 1 and Y 2 are an aryloxy group, a dialkylamino group, an N-alkyl-
It represents an N-arylamino group or a diarylamino group, and these groups have the same meaning as the groups described for R 1 to R 14 .

【0016】好ましいY1 およびY2 はジアルキルアミ
ノ基又はジアリールアミノ基である。
Preferred Y 1 and Y 2 are a dialkylamino group or a diarylamino group.

【0017】一般式(I)および(II) におけるZ1
2 、Z3 およびZ4 は酸素原子、イオウ原子、又は一
置換窒素原子であるが、一置換窒素原子について説明す
れば、アルキル基又はアリール基が置換した窒素原子で
ある。窒素原子上のアルキル基およびアリール基の定義
は前記R1 〜R14にて説明したものと同義である。Z 1
〜Z4 の好ましい原子は酸素原子である。
Z in the general formulas (I) and (II)1,
ZTwo, ZThreeAnd ZFourIs an oxygen atom, a sulfur atom, or
This is a substituted nitrogen atom.
If the alkyl or aryl group is substituted with a nitrogen atom,
is there. Definition of alkyl and aryl groups on nitrogen atom
Is R1~ R14Has the same meaning as described in Z 1
~ ZFourIs preferably an oxygen atom.

【0018】一般式(I)におけるlは1以上の整数を
表わすが、好ましくは1ないし4の整数である。特に好
ましくは2である。
In the general formula (I), l represents an integer of 1 or more, preferably 1 to 4. Particularly preferably, it is 2.

【0019】lが3の整数を表わす時R1 〜R7 の少な
くとも1つは水素原子以外の基を表わすが、この時好ま
しいR1 〜R7 はアルキル基もしくはジアルキルアミノ
基である。
When 1 represents an integer of 3, at least one of R 1 to R 7 represents a group other than a hydrogen atom, and preferably R 1 to R 7 is an alkyl group or a dialkylamino group.

【0020】一般式(II) におけるmは1以上の整数を
表わすが、好ましくは1ないし4の整数である。特に好
ましくは2である。
In the general formula (II), m represents an integer of 1 or more, preferably an integer of 1 to 4. Particularly preferably, it is 2.

【0021】一般式(I)および(II) におけるaおよ
びbは1ないし4の整数を表わすが、好ましくは1又は
2の整数である。
In the general formulas (I) and (II), a and b represent an integer of 1 to 4, preferably 1 or 2.

【0022】R1 、R2 、R4 又はR5 がX1 又はX2
と、R9 、R10、R12又はR13がY 1 又はY2 と結合し
て環を形成してもよく、その場合好ましい環員数は5〜
7である。
R1, RTwo, RFourOr RFiveIs X1Or XTwo
And R9, RTen, R12Or R13Is Y 1Or YTwoCombined with
To form a ring, in which case the preferred number of ring members is 5 to 5.
7

【0023】次に本発明の一般式(I)および(II) で
表される化合物の具体例を示すが、本発明はこれらに限
定されるものではない。
Next, specific examples of the compounds represented by formulas (I) and (II) of the present invention are shown, but the present invention is not limited to these.

【0024】[0024]

【化5】 Embedded image

【0025】[0025]

【化6】 Embedded image

【0026】[0026]

【化7】 Embedded image

【0027】[0027]

【化8】 Embedded image

【0028】[0028]

【化9】 Embedded image

【0029】[0029]

【化10】 Embedded image

【0030】[0030]

【化11】 Embedded image

【0031】[0031]

【化12】 Embedded image

【0032】次に本発明の化合物の合成法について一般
式(I)の場合を例として以下説明する。代表的合成法
としてlおよびmが1又は2の場合は<スキーム1>の
方法、lおよびmが2以上の場合は<スキーム2>の方
法が利用できる。lおよびmが2以上で、特に非対称な
場合に<スキーム3>の方法が有効である。
Next, a method for synthesizing the compound of the present invention will be described below by taking the case of the general formula (I) as an example. As typical synthesis methods, when l and m are 1 or 2, the method of <Scheme 1> can be used, and when l and m are 2 or more, the method of <Scheme 2> can be used. When l and m are 2 or more and particularly asymmetric, the method of <Scheme 3> is effective.

【0033】[0033]

【化13】 Embedded image

【0034】[0034]

【化14】 Embedded image

【0035】[0035]

【化15】 Embedded image

【0036】一般式(II) の場合も上記と同様の方法に
て合成可能である。
In the case of the general formula (II), it can be synthesized by the same method as described above.

【0037】本発明の化合物の精製はシリカゲルカラム
クロマトグラフィと再結晶法、更に必要なら昇華法によ
り行なわれる。
The compound of the present invention is purified by silica gel column chromatography and a recrystallization method, and further, if necessary, by a sublimation method.

【0038】[0038]

【実施例】以下に実施例に基づき本発明を説明するが、
本発明はこれらの実施例により何ら限定されるものでは
ない。
The present invention will be described below with reference to examples.
The present invention is not limited by these examples.

【0039】実施例1(例示化合物(I−3)の合成)Example 1 (Synthesis of Exemplified Compound (I-3))

【0040】[0040]

【化16】 Embedded image

【0041】<3>は特開昭56−100,771号記
載の方法をもとに合成した。<1>101g(0.52
mol)をジメチルホルムアミド(DMF)330mlに溶か
し、その中に水酸化ナトリウム40g(1.0mol)を入
れ室温下攪拌した。その中に臭化セチル195g(0.
64mol)を加え、約80℃に加熱した。約5時間後酢酸
エチルで抽出し、後処理を行ない減圧濃縮すると<2>
の粗結晶を得た。この<2>にメチルセルソルブ700
mlと濃塩酸393mlを加え、約8時間加熱還流し、反応
液を室温下に戻すと結晶が析出した。アセトニトリル
(600ml)を加えて攪拌分散して吸引濾過することに
より、ほぼ純粋な<3>を218g(95%)得ること
ができた。<3>65.4g(148mmol) を1,4−
ベンゼンジカルボン酸クロリド15g(73.9mmol)
のNMP(N−メチルピロリドン)溶液(300ml)に
加え室温下攪拌した。30分間攪拌後一晩放置すると結
晶が析出したので、メタノールを加え結晶を濾別した。
<3> was synthesized based on the method described in JP-A-56-100,771. <1> 101 g (0.52
mol) was dissolved in 330 ml of dimethylformamide (DMF), and 40 g (1.0 mol) of sodium hydroxide was added thereto and stirred at room temperature. In it, 195 g of cetyl bromide (0.
64 mol) and heated to about 80 ° C. After about 5 hours, the mixture was extracted with ethyl acetate, worked up and concentrated under reduced pressure. <2>
Was obtained. In this <2>, methylcellosolve 700
The mixture was heated under reflux for about 8 hours, and the temperature of the reaction solution was returned to room temperature to precipitate crystals. Acetonitrile (600 ml) was added, and the mixture was stirred and dispersed, followed by suction filtration to obtain 218 g (95%) of almost pure <3>. <3> 65.4 g (148 mmol) of 1,4-
15 g (73.9 mmol) of benzenedicarboxylic acid chloride
Was added to an NMP (N-methylpyrrolidone) solution (300 ml) and stirred at room temperature. After stirring for 30 minutes and leaving overnight, crystals precipitated, so methanol was added and the crystals were filtered off.

【0042】得られた黄色結晶をフラスコにとり、クロ
ルベンゼン200mlとNMP300mlおよびp−トルエ
ンスルホン酸−水和物7.0g(37mmol) を加え外温
〜240℃に加熱した。水と若干のクロルベンゼンを除
きながら約4時間加熱し、その後一晩室温放置すると結
晶が析出した。メタノールを加え、吸引濾過すると白色
の結晶が得られた。酢酸エチルで再結晶することにより
例示化合物(I−3)を56.4g(84.3%)得る
ことができた。融点88〜91℃
The obtained yellow crystals were placed in a flask, 200 ml of chlorobenzene, 300 ml of NMP and 7.0 g (37 mmol) of p-toluenesulfonic acid hydrate were added, and the mixture was heated to an external temperature to 240 ° C. The mixture was heated for about 4 hours while removing water and some chlorobenzene, and then left overnight at room temperature to precipitate crystals. Methanol was added, and the mixture was filtered by suction to obtain white crystals. By recrystallizing with ethyl acetate, 56.4 g (84.3%) of the exemplary compound (I-3) was obtained. 88-91 ° C

【0043】実施例2(例示化合物(I−4)の合成)Example 2 (Synthesis of Exemplified Compound (I-4))

【0044】[0044]

【化17】 Embedded image

【0045】<5>5.0g(33.5mmol) をジメチ
ルホルムアミド(DMF)100mlに溶かし、その中に
90%カリウムt−ブトキシド5.0g(40.2mmo
l) を室温下加えた。30分攪拌後ジメチル硫酸5.1
g(40.4mmol) を加えた。1時間攪拌後、酢酸エチ
ルで抽出し後処理後、減圧濃縮し、<6>の粗結晶を得
た。この<6>をメタノール100mlに溶かし、濃塩酸
10mlを加えて約8時間加熱還流し、反応液を濃縮乾固
すると<7>の粗結晶が得られ、酢酸エチルで分散して
吸引濾過することにより、ほぼ純粋な<7>を4.4g
(75%)得ることができた。<7>4.0g(22.
8mmol) と4,4′−ビフェニルジカルボニルクロリ
ド、29g(10.4mmol) のアセトニトリル(50m
l)溶液を攪拌し、その中にトリエチルアミン4.6ml
(33.2mmol) を滴下した。滴下後約2時間加熱還流
し、室温に戻した後水を約50mlを加えて結晶を十分に
析出させた。結晶を吸引濾過し、メタノール洗浄および
乾燥すると<8>の淡黄色結晶を8.3g(75%)得
た。<8>8.0g(16.5mmol) のトルエン(10
0ml)溶液にp−トルエンスルホン酸水和物9.4g
(49.5mmol) を加え、ディーンスターク水除去装置
を用いて水を除去しながら約8時間加熱還流した。室温
に戻し、析出した結晶を吸引濾過し、飽和重曹水と蒸留
水およびテトラヒドロフランで洗浄し乾燥すると例示化
合物(I−4)を淡黄色結晶として4.1g(55%)
得た。融点300℃以上
<5> 5.0 g (33.5 mmol) was dissolved in 100 ml of dimethylformamide (DMF), and 5.0 g (40.2 mmol) of 90% potassium t-butoxide was dissolved therein.
l) was added at room temperature. After stirring for 30 minutes, dimethyl sulfate 5.1
g (40.4 mmol) was added. After stirring for 1 hour, the mixture was extracted with ethyl acetate, worked up, and concentrated under reduced pressure to obtain a crude crystal of <6>. This <6> is dissolved in 100 ml of methanol, 10 ml of concentrated hydrochloric acid is added, and the mixture is heated under reflux for about 8 hours. The reaction mixture is concentrated to dryness to obtain crude crystals of <7>, which are dispersed in ethyl acetate and filtered by suction. 4.4 g of almost pure <7>
(75%). <7> 4.0 g (22.
8 mmol) and 4,4'-biphenyldicarbonyl chloride, 29 g (10.4 mmol) of acetonitrile (50 m
l) Stir the solution and add 4.6 ml of triethylamine in it
(33.2 mmol) was added dropwise. After the dropwise addition, the mixture was heated under reflux for about 2 hours, returned to room temperature, and added with about 50 ml of water to sufficiently precipitate crystals. The crystals were collected by suction filtration, washed with methanol and dried to obtain 8.3 g (75%) of pale yellow crystals of <8>. <8> 8.0 g (16.5 mmol) of toluene (10
9.4 g of p-toluenesulfonic acid hydrate in the solution.
(49.5 mmol), and the mixture was heated under reflux for about 8 hours while removing water using a Dean-Stark water removing apparatus. After returning to room temperature, the precipitated crystals were filtered by suction, washed with saturated aqueous sodium hydrogen carbonate, distilled water and tetrahydrofuran, and dried to give 4.1 g (55%) of Exemplified Compound (I-4) as pale yellow crystals.
Obtained. Melting point 300 ° C or more

【0046】実施例3(例示化合物(I−5)の合成)Example 3 (Synthesis of Exemplified Compound (I-5))

【0047】[0047]

【化18】 Embedded image

【0048】<9>10g(43.2mmol) を100ml
のジメチルアセトアミド(DMAC)100mlに溶か
し、その中にカリウムt−ブトキシ6.5g(51.8
mmol)を加え約30分間室温下攪拌した。その中にヨー
ドエタン8.1g(51.8ml)を滴下し、しばらく攪
拌した。TLCをチェックし<9>の消失を確認したら
水を加え酢酸エチルで2回抽出し、水および飽和食塩水
で洗浄し、硫酸マグネシウムで乾燥後濾過し、減圧濃縮
すると若干のDMACを含んだ<10>が得られた。こ
の中にメタノール100mlと濃塩酸15ml(0.18mo
l)を加え、約5時間加熱還流した反応液をそのまま減圧
濃縮し、残渣にトルエンとメタノールを加えて再度減圧
濃縮した後、得られた結晶に酢酸エチルを加えて攪拌
し、結晶を吸引濾過、乾燥することにより<11>を淡
黄色結晶として8.9g(76%)得ることができた。
4,4′−ビフェニルジカルボニルクロリド2.3g
(8.4mmol) のアセトニトリル(100ml)溶液を室
温下攪拌し、その中に2−アミノ−4−シクロヘキシル
−5−エトキシフェノール塩酸塩<11>5.0g(1
8.4mmol) を加えた。次にトリエチルアミン3.7ml
(26.9mmol) を滴下し、その後約2時間加熱還流し
た。室温に戻し、水を加えて析出した薄茶色の結晶を吸
引濾過し、メタノールで十分に洗浄した。この結晶はア
ミド体<12>であり、収量は4.3g(75.7%)
であった。アミド体<12>4.0g(5.9mmol)
と、パラトルエンスルホン酸−水和物3.3g(17.
3mmol) のトルエン(100ml)溶液をディーンスター
ク水除去装置を用いて水を除きながら約16時間加熱還
流した。その後室温まで放冷すると、結晶が析出した。
結晶を吸引濾過したトルエンで洗浄すると、黄色結晶が
得られた。この結晶をビーカーに移し、飽和の炭素水素
ナトリウム水溶液を加えて攪拌した再度吸引濾過・水洗
浄し、その後乾燥すると、例示化合物(I−5)がやや
黄緑がかった淡黄色結晶として2.1g(55%)得ら
れた。融点259〜260℃(テトラヒドロフランより
再結晶)。
<9> 10 g (43.2 mmol) in 100 ml
Was dissolved in 100 ml of dimethylacetamide (DMAC), and 6.5 g of potassium t-butoxy (51.8 g) was added thereto.
mmol) and stirred at room temperature for about 30 minutes. Into this, 8.1 g (51.8 ml) of iodoethane was added dropwise and stirred for a while. TLC was checked, and when the disappearance of <9> was confirmed, water was added and the mixture was extracted twice with ethyl acetate, washed with water and saturated saline, dried over magnesium sulfate, filtered, and concentrated under reduced pressure to contain some DMAC. 10> was obtained. 100 ml of methanol and 15 ml of concentrated hydrochloric acid (0.18 mol
l) was added, and the reaction solution heated and refluxed for about 5 hours was concentrated under reduced pressure as it was. Toluene and methanol were added to the residue, and the mixture was again concentrated under reduced pressure. Drying yielded 8.9 g (76%) of <11> as pale yellow crystals.
2.3 g of 4,4'-biphenyldicarbonyl chloride
(8.4 mmol) in acetonitrile (100 ml) was stirred at room temperature, and 5.0 g (1) of 2-amino-4-cyclohexyl-5-ethoxyphenol hydrochloride <11> was added thereto.
8.4 mmol) was added. Next, 3.7 ml of triethylamine
(26.9 mmol) was added dropwise, and the mixture was refluxed for about 2 hours. After returning to room temperature, light brown crystals precipitated by adding water were suction-filtered and sufficiently washed with methanol. This crystal was an amide <12>, and the yield was 4.3 g (75.7%).
Met. Amide <12> 4.0 g (5.9 mmol)
And 3.3 g of paratoluenesulfonic acid-hydrate (17.
(3 mmol) in toluene (100 ml) was heated to reflux for about 16 hours while removing water using a Dean-Stark water removal apparatus. Thereafter, when allowed to cool to room temperature, crystals were precipitated.
The crystals were washed with toluene filtered with suction to obtain yellow crystals. The crystals were transferred to a beaker, a saturated aqueous solution of sodium hydrogencarbonate was added, and the mixture was stirred, suction filtered, washed with water again, and then dried to give 2.1 g of the exemplary compound (I-5) as slightly yellowish pale yellow crystals. (55%). 259-260 ° C (recrystallized from tetrahydrofuran).

【0049】実施例4(例示化合物(I−6)の合成) 4,4′−ビフェニルジカルボニルクロリド2.3g
(8.4mmol) のアセトニトリル(100ml)溶液を室
温下攪拌し、その中に2−アミノ−4−シクロヘキシル
−5−メトキシフェノール塩酸塩5.0g(19.4mm
ol) を加えた。次にトリエチルアミン3.7ml(26.
9mmol) を滴下し、その後約2時間加熱還流した。室温
に戻し、水を加えて析出した薄茶色の結晶を吸引濾過
し、メタノールで十分に洗浄した。この結晶はジアミド
体であり、収量は4.3g(78%)であった。ジアミ
ド体4.0g(6.2mmol) とp−トルエンスルホン酸
−水和物3.3g(17.3mmol) のトルエン(100
ml)溶液をDean-Stark装置を用いて水を除きながら約1
6時間加熱還流した。その後室温まで放冷すると、結晶
が析出した。結晶を吸引濾過し、トルエンで洗浄する
と、黄色結晶が得られた。この結晶をビーカーに移し、
飽和の炭酸水素ナトリウム水溶液を加え攪拌して再度吸
引濾過・水洗浄し、その後乾燥すると、例示化合物(I
−6)が淡黄色結晶として2.3g(60%)得られ
た。融点283〜285℃(テトラヒドロフランより再
結晶)。
Example 4 (Synthesis of Exemplified Compound (I-6)) 2.3 g of 4,4'-biphenyldicarbonyl chloride
(8.4 mmol) in acetonitrile (100 ml) was stirred at room temperature, and 5.0 g (19.4 mm) of 2-amino-4-cyclohexyl-5-methoxyphenol hydrochloride was added thereto.
ol). Next, 3.7 ml of triethylamine (26.
(9 mmol) was added dropwise, and the mixture was heated under reflux for about 2 hours. After returning to room temperature, light brown crystals precipitated by adding water were suction-filtered and sufficiently washed with methanol. The crystals were in the form of a diamide, and the yield was 4.3 g (78%). 4.0 g (6.2 mmol) of a diamide compound and 3.3 g (17.3 mmol) of p-toluenesulfonic acid hydrate in toluene (100
ml) using a Dean-Stark apparatus to remove about 1
The mixture was refluxed for 6 hours. Thereafter, when allowed to cool to room temperature, crystals were precipitated. The crystals were suction filtered and washed with toluene to give yellow crystals. Transfer this crystal to a beaker,
A saturated aqueous sodium hydrogen carbonate solution was added, and the mixture was stirred, filtered again with suction and washed with water, and then dried.
-6) was obtained as pale yellow crystals (2.3 g, 60%). 283-285 ° C (recrystallized from tetrahydrofuran).

【0050】実施例5(例示化合物(I−9)の合成)Example 5 (Synthesis of Exemplified Compound (I-9))

【0051】[0051]

【化19】 Embedded image

【0052】4−ヨード安息香酸17.3g(70mmo
l) をNMP(N−メチルピロリドン)100mlに溶か
し、約10℃に氷水にて冷却攪拌した。その中に、塩化
チオニル5.9ml(81mmol) 滴下し、滴下後約2時間
攪拌した。次に反応液中に<13>を15.0g(58
mmol) 加え、約2時間攪拌した。反応液に水を加え、ク
ロロホルム抽出を2回行い、合わせた抽出液を水酸化ナ
トリウムの水溶液(〜pH8)と飽和食塩水で洗浄し、
無水硫酸マグネシウムで乾燥後、濾過・濃縮を行った。
NMPを含む濃縮液にトルエン100mlとp−トルエン
スルホン酸一水和物2.2g(12mmol) を加え、Dean
-Stark装置を用いてトルエンを除きながら脱水した。ト
ルエンの大部分が除かれたら、クロロベンゼンを100
ml加え約15時間加熱還流した。反応液に水とクロロホ
ルムを加え、抽出操作を行い、得られた結晶性化合物に
メタノールを加えて濾過すると、淡黄褐色の<14>が
21.6g(86.1%)得られた。<14>、5g
(11.5mmol) 、4,4′−ビフェニルジボロン酸
1.4g(5.8mmol) 、テトラキストリフェニルホス
フィンパラジウム0.1g(0.087mmol) をフラス
コに取り、その中に2Mの炭酸ナトリウム水溶液11.
5ml(23mmol) とトルエン80mlを加え、窒素気流下
加熱還流した。うまく混合しないためDMF90mlと水
30mlを加え、約20時間加熱還流した。反応液を室温
に戻し、水を加えると結晶が析出したので濾過し、メタ
ノールで洗浄した。得られた結晶物を更にSoxhlet 抽出
器を用いてクロロホルム抽出すると例示化合物(I−
9)を純粋な結晶として2.7g(61.4%)得るこ
とができた。融点275〜276℃。
17.3 g (70 mmol) of 4-iodobenzoic acid
l) was dissolved in 100 ml of NMP (N-methylpyrrolidone) and cooled to about 10 ° C. with ice water and stirred. 5.9 ml (81 mmol) of thionyl chloride was added dropwise thereto, and the mixture was stirred for about 2 hours after the addition. Next, 15.0 g (58) of <13> was added to the reaction solution.
mmol) and stirred for about 2 hours. Water was added to the reaction solution, chloroform extraction was performed twice, and the combined extracts were washed with an aqueous solution of sodium hydroxide (up to pH 8) and saturated saline,
After drying over anhydrous magnesium sulfate, filtration and concentration were performed.
100 ml of toluene and 2.2 g (12 mmol) of p-toluenesulfonic acid monohydrate were added to the concentrated solution containing NMP, and Dean was added.
-Dehydration was performed using a Stark apparatus while removing toluene. After most of the toluene has been removed, add 100 parts of chlorobenzene.
The mixture was heated under reflux for about 15 hours. Water and chloroform were added to the reaction solution, an extraction operation was performed, methanol was added to the obtained crystalline compound, and the mixture was filtered to obtain 21.6 g (86.1%) of pale yellow-brown <14>. <14>, 5 g
(11.5 mmol), 1.4 g (5.8 mmol) of 4,4'-biphenyldiboronic acid and 0.1 g (0.087 mmol) of tetrakistriphenylphosphine palladium were placed in a flask, and a 2M aqueous solution of sodium carbonate was placed therein. 11.
5 ml (23 mmol) and 80 ml of toluene were added, and the mixture was heated and refluxed under a nitrogen stream. To prevent mixing, 90 ml of DMF and 30 ml of water were added, and the mixture was heated under reflux for about 20 hours. The reaction solution was returned to room temperature, and when water was added, crystals precipitated. The crystals were filtered and washed with methanol. When the obtained crystal was further extracted with chloroform using a Soxhlet extractor, the exemplified compound (I-
2.7 g (61.4%) of 9) were obtained as pure crystals. Melting point 275-276 [deg.] C.

【0053】実施例6(例示化合物(I−17)の合
成)
Example 6 (Synthesis of Exemplified Compound (I-17))

【0054】[0054]

【化20】 Embedded image

【0055】2−アミノ−5−ニトロフェノール、<1
5>、12.1g(78.8mmol)のアセトニトリル
(100ml)溶液に、室温下4,4′−ビフェニルジカ
ルボン酸クロリド、10.0g(35.8mmol) を加え
攪拌した。その中にトリエチルアミン、8.0g(7
8.8mmol) を滴下し、その後約2時間攪拌した。析出
した結晶を濾過し、アセトニトリルで洗浄・乾燥する
と、<16>の黄色結晶を17.0g(92.3%)得
ることができた。<16>、15.0gにDMI(1,
3−ジメチル−2−イミダゾリジノン)200mlとトル
エン100mlを加え、更にその中にp−トルエンスルホ
ン酸一水塩、16.6g(87.5mmol) を加え約15
時間加熱還流した。加熱還流中、Dean-Stark装置を使っ
て水を除去した。室温に戻した後析出した結晶を濾過・
乾燥することにより<17>の黄色粉末結晶を12.1
g(76.5%)得た。還元鉄5.8g(105mmol)
をイソプロパノール100mlに入れ、その中に塩化アン
モニア0.6g(10.5mmol) と水30mlを加えて約
30分加熱還流した。加熱還流を一時止め、<17>を
5.0g(10.5mmol) 反応液に添加し、更にDMF
(N,N−ジメチルホルムアミド)を300ml加えた。
そして約6時間加熱還流し、約50℃ぐらいに冷やした
後セライトを使用して不溶物を濾過した。濾液をエバポ
レーターで濃縮し、イソプロパノールと水を除去して得
られた<18>を含む残渣にヨードエタン50g(32
0mmol) と炭酸カリウム20g(145mmol) を加え、
65〜75℃で約20時間反応した。反応液にクロロホ
ルムと水を加え、セライト濾過後抽出操作を行った。無
水硫酸マグネシウムで乾燥後、濾過濃縮すると結晶性の
化合物を得た。その中にメタノールを入れかき混ぜた
後、吸引濾過することにより、例示化合物(I−17)
を主成分とする黄色結晶を3.8g得た。それをシリカ
ゲルカラムクロマトグラフィー(クロロホルムにて溶
出)で精製し、引き続きテトラヒドロフランで再結晶す
ることにより、純粋な例示化合物(I−17)を2.0
g(35.9%)得ることができた。融点232〜23
3℃。
2-amino-5-nitrophenol, <1
5> To a solution of 12.1 g (78.8 mmol) of acetonitrile (100 ml) at room temperature was added 10.0 g (35.8 mmol) of 4,4'-biphenyldicarboxylic acid chloride and the mixture was stirred. In it, triethylamine, 8.0 g (7
(8.8 mmol) was added dropwise, followed by stirring for about 2 hours. The precipitated crystals were collected by filtration, washed with acetonitrile, and dried, whereby 17.0 g (92.3%) of <16> yellow crystals could be obtained. <16>, 15.0 g of DMI (1,
200 ml of 3-dimethyl-2-imidazolidinone) and 100 ml of toluene were added thereto, and 16.6 g (87.5 mmol) of p-toluenesulfonic acid monohydrate was further added thereto to add about 15%.
Heated to reflux for an hour. During heating to reflux, water was removed using a Dean-Stark apparatus. After returning to room temperature, the precipitated crystals were filtered and
By drying, the yellow powdery crystals of <17> were obtained in 12.1
g (76.5%). 5.8 g (105 mmol) of reduced iron
Was added to 100 ml of isopropanol, and 0.6 g (10.5 mmol) of ammonium chloride and 30 ml of water were added thereto, and the mixture was heated under reflux for about 30 minutes. Heating / refluxing was temporarily stopped, <17> was added to 5.0 g (10.5 mmol) of the reaction solution, and DMF was further added.
300 ml of (N, N-dimethylformamide) were added.
Then, the mixture was heated under reflux for about 6 hours, cooled to about 50 ° C., and insoluble matters were filtered using celite. The filtrate was concentrated by an evaporator, and the residue containing <18> obtained by removing isopropanol and water was added to 50 g of iodoethane (32 g).
0 mmol) and 20 g (145 mmol) of potassium carbonate.
The reaction was performed at 65 to 75 ° C for about 20 hours. Chloroform and water were added to the reaction solution, and the mixture was filtered through Celite and subjected to an extraction operation. After drying over anhydrous magnesium sulfate, the mixture was concentrated by filtration to obtain a crystalline compound. After stirring methanol in the mixture, the mixture was subjected to suction filtration to give Exemplified Compound (I-17).
3.8 g of a yellow crystal mainly composed of It was purified by silica gel column chromatography (eluted with chloroform) and subsequently recrystallized from tetrahydrofuran to give pure Exemplified Compound (I-17) in 2.0%.
g (35.9%). Melting point 232-23
3 ° C.

【0056】実施例7(例示化合物(I−27)の合
成) 2−アミノ−5−(N−フェニル−N−m−トリルアミ
ノ)フェノール塩酸塩3.3g(10mmol) と4,4′
−ビフェニルジカルボニルクロリド1.2g(4.3mm
ol) を用い、実施例4と同様にして例示化合物(I−2
7)を2.1g(65%)を得ることができた。融点2
50〜253℃
Example 7 (Synthesis of Exemplified Compound (I-27)) 3.3 g (10 mmol) of 2-amino-5- (N-phenyl-Nm-tolylamino) phenol hydrochloride and 4,4 '
-Biphenyldicarbonyl chloride 1.2 g (4.3 mm
ol), and in the same manner as in Example 4, the exemplified compound (I-2)
7) was obtained in an amount of 2.1 g (65%). Melting point 2
50-253 ° C

【0057】実施例8(例示化合物(II−2)の合成) 実施例6において2−アミノ−5−ニトロフェノール<
15>の代りに2−アミノ−4−ニトロフェノールを用
いる以外はほとんど同様にして例示化合物(II−2)を
3.5g(全収率18%)得ることができた。融点25
1〜252℃
Example 8 (Synthesis of Exemplified Compound (II-2)) In Example 6, 2-amino-5-nitrophenol <
Except for using 2-amino-4-nitrophenol in place of 15>, 3.5 g of Exemplified Compound (II-2) (total yield: 18%) could be obtained. Melting point 25
1-252 ° C

【0058】実施例9(例示化合物(II−4)の合成) 2−アミノ−4−ジフェニルアミノフェノール塩酸塩
3.1g(10.0mmol) と4,4′−ビフェニルジカ
ルボニルクロリド1.2g(4.3mmol) を用い、実施
例4と同様にして例示化合物(II−4)を2.2g(全
収率70%)を得ることができた。融点265〜267
Example 9 (Synthesis of Exemplified Compound (II-4)) 3.1 g (10.0 mmol) of 2-amino-4-diphenylaminophenol hydrochloride and 1.2 g of 4,4'-biphenyldicarbonyl chloride ( In the same manner as in Example 4, 2.2 g of Exemplified Compound (II-4) was obtained (total yield: 70%). Melting point 265-267
° C

【0059】実施例10(例示化合物(II−5)の合
成) 2−アミノ−4−フェノキシフェノール塩酸塩2.4g
(10.0mmol) と4,4′−ビフェニルジカルボニル
クロリド1.2g(4.3mmol) を用い、実施例4と同
様にして例示化合物(II−5)を2.0g(80.0
%)を得ることができた。融点280〜283℃
Example 10 (Synthesis of Exemplified Compound (II-5)) 2.4 g of 2-amino-4-phenoxyphenol hydrochloride
(10.0 mmol) and 1.2 g (4.3 mmol) of 4,4'-biphenyldicarbonyl chloride, and 2.0 g (80.0 mmol) of exemplified compound (II-5) was obtained in the same manner as in Example 4.
%). Melting point 280-283 ° C

【0060】[0060]

【発明の効果】本発明のビスベンゾアゾール化合物は真
空蒸着性に優れ、有機エレクトロルミネッセンス素子に
おいて素子安定性と輝度特性に優れた青色発光電子輸送
材として機能した。また、青色発光材としてのみなら
ず、ドープ剤を用いて緑色又は赤色に発光させる場合の
ホスト物質としても有効に働いた。本発明のビスベンゾ
アゾール化合物が見出されたことによりフルカラーの有
機エレクトロルミネッセンス素子の設計が容易になっ
た。
The bisbenzoazole compound of the present invention has excellent vacuum deposition properties and functions as a blue light-emitting electron transporting material having excellent device stability and luminance characteristics in organic electroluminescence devices. In addition, it worked effectively not only as a blue light emitting material but also as a host material when emitting green or red light using a dopant. The discovery of the bisbenzoazole compound of the present invention has facilitated the design of a full-color organic electroluminescent device.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 FI H05B 33/22 H05B 33/22 B ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI H05B 33/22 H05B 33/22 B

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 一般式(I)および(II) で表わされる
ビスベンゾアゾール化合物。 【化1】 式中、R1 〜R7 は水素原子、ハロゲン原子、アルキル
基、アリール基、アルコキシ基、アリールオキシ基、ア
ミノ基、ジアルキルアミノ基、N−アルキル−N−アリ
ールアミノ基、ジアリールアミノ基又はシリル基を表わ
す。lは1以上の整数を表わし、aは1ないし4の整数
表わす。X1 およびX2 はアルコキシ基、アリールオキ
シ基、ジアルキルアミノ基、N−アルキル−N−アリー
ルアミノ基又はジアリールアミノ基を表わす。但し、l
が3の時R1 〜R7 の少なくとも1つは水素原子以外の
基を表わす。Z1 およびZ2 は酸素原子、イオウ原子又
は一置換の窒素原子を表わす。 【化2】 式中、R8 〜R14は水素原子、ハロゲン原子、アルキル
基、アリール基、アルコキシ基、アリールオキシ基、ア
ミノ基、ジアルキルアミノ基、N−アルキル−N−アリ
ールアミノ基、ジアリールアミノ基又はシリル基を表わ
す。mは1以上の整数を表わし、bは1ないし4の整数
を表わす。Y1 およびY2 はアリールオキシ基、ジアル
キルアミノ基、N−アルキル−N−アリールアミノ基、
又はジアリールアミノ基を表わす。Z3 およびZ4 は酸
素原子、イオウ原子又は一置換の窒素原子を表わす。
1. Bisbenzoazole compounds represented by the general formulas (I) and (II). Embedded image In the formula, R 1 to R 7 are a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an amino group, a dialkylamino group, an N-alkyl-N-arylamino group, a diarylamino group or a silyl. Represents a group. l represents an integer of 1 or more, and a represents an integer of 1 to 4. X 1 and X 2 represent an alkoxy group, an aryloxy group, a dialkylamino group, an N-alkyl-N-arylamino group or a diarylamino group. Where l
Is 3, at least one of R 1 to R 7 represents a group other than a hydrogen atom. Z 1 and Z 2 represent an oxygen atom, a sulfur atom or a monosubstituted nitrogen atom. Embedded image In the formula, R 8 to R 14 represent a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an amino group, a dialkylamino group, an N-alkyl-N-arylamino group, a diarylamino group or a silyl. Represents a group. m represents an integer of 1 or more, and b represents an integer of 1 to 4. Y 1 and Y 2 are an aryloxy group, a dialkylamino group, an N-alkyl-N-arylamino group,
Or a diarylamino group. Z 3 and Z 4 represent an oxygen atom, a sulfur atom or a monosubstituted nitrogen atom.
JP08475798A 1997-05-14 1998-03-30 Bisbenzazole compounds Expired - Lifetime JP4669590B2 (en)

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