JPS59134792A - Preparation of 1,2,5,6-tetrahydro-4h-pyrrolo(3,2,1-i,j)- quinolin-4-one - Google Patents

Preparation of 1,2,5,6-tetrahydro-4h-pyrrolo(3,2,1-i,j)- quinolin-4-one

Info

Publication number
JPS59134792A
JPS59134792A JP669283A JP669283A JPS59134792A JP S59134792 A JPS59134792 A JP S59134792A JP 669283 A JP669283 A JP 669283A JP 669283 A JP669283 A JP 669283A JP S59134792 A JPS59134792 A JP S59134792A
Authority
JP
Japan
Prior art keywords
chloride
aluminum chloride
chloropropionyl
indoline
sodium chloride
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.)
Pending
Application number
JP669283A
Other languages
Japanese (ja)
Inventor
「しし」戸 節雄
Setsuo Shishido
Noriaki Kamiya
神谷 憲明
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.)
Nippon Kayaku Co Ltd
Original Assignee
Nippon Kayaku 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 Nippon Kayaku Co Ltd filed Critical Nippon Kayaku Co Ltd
Priority to JP669283A priority Critical patent/JPS59134792A/en
Publication of JPS59134792A publication Critical patent/JPS59134792A/en
Pending legal-status Critical Current

Links

Landscapes

  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

PURPOSE:To prepare the titled compound useful as a fungicide, economically in an industrial scale, by cyclizing N-(3-chloropropionyl)-indoline in the presence of molten aluminum chloride, potassium chloride and sodium chloride. CONSTITUTION:The objective compound is prepared by cyclizing N-(3-chloropropionyl)-indoline in the presence of molten aluminum chloride, potassium chloride and sodium chloride (preferably 1.5-4mol of aluminum chloride per 1mol of the raw material, and 0.1-1.5mol of potasium chloride and 0.04-0.3mol of sodium chloride per 1mol of aluminum chloride), preferably at 110-250 deg.C. EFFECT:The reaction temperature can be controlled easily; the sublimation can be prevented; the solvent recovery is unnecessary; and the post-treatment can be carried out easily.

Description

【発明の詳細な説明】 本発明はN−(5−クロロプロピオニル)−インドリン
を、塩化アルミニウム、塩化カリウム及び塩化ナトリウ
ムの溶融塩の存在下環化させることを特徴とする、L、
2,5.6−テトラヒドロ−4H−ピロロC5,2,1
−i、j )−キノリン−4−オンの製造方法に関する
DETAILED DESCRIPTION OF THE INVENTION The present invention is characterized in that N-(5-chloropropionyl)-indoline is cyclized in the presence of molten salts of aluminum chloride, potassium chloride and sodium chloride,
2,5,6-tetrahydro-4H-pyrroloC5,2,1
-i,j)-Quinoline-4-one manufacturing method.

1、2.5.6−テトラヒドロ−4H−ピロロ(3,2
゜1−1.jJ −キノリン−4−オン(以下核化合物
という)は特公昭52−48176号などで公知であっ
て、殺菌剤として有用な化合物である。該化合物は、従
来N−(3−クロロプロピオニル)−インドリンを、塩
化アルミニウムを触媒とし。
1,2.5.6-tetrahydro-4H-pyrrolo(3,2
゜1-1. jJ-quinolin-4-one (hereinafter referred to as a core compound) is known from Japanese Patent Publication No. 52-48176 and is a compound useful as a bactericidal agent. The compound is conventionally prepared using N-(3-chloropropionyl)-indoline and aluminum chloride as a catalyst.

溶媒を用いないか、あるいは有機溶媒を用いて反応させ
るいわゆるクリ−デル・クラフッ反応で得られている。
It is obtained by the so-called Kriedel-Krauch reaction, which is carried out without using a solvent or with an organic solvent.

溶媒を用いない方法は希釈度が小さいために分子間の副
反応を抑えることが難しく、分子間反応物が10%程度
副生し高純度の該化合物を取出すときに大きな障害とな
る。さらに高温で反応させるため昇華物が相当あり1反
応系を閉塞σせる危険性を有している。またN−(3〜
クロログロビオニル)−インドリンと塩化アルミニウム
とが錯塩を形成するときの発熱量が大きく、極めて短時
間に発熱するが、反応液相が少ないだめに反応温度の制
御が非常に離しいという欠点を有している。
In a method that does not use a solvent, it is difficult to suppress intermolecular side reactions due to the low dilution, and about 10% of intermolecular reactants are produced as by-products, which becomes a major obstacle when extracting the highly pure compound. Furthermore, since the reaction is carried out at a high temperature, there is a considerable amount of sublimate, which poses the risk of clogging the reaction system. Also N-(3~
When indoline (chloroglobionyl)-indoline and aluminum chloride form a complex salt, the amount of heat generated is large and heat is generated in an extremely short time, but the drawback is that the reaction temperature cannot be controlled very easily due to the small amount of reaction liquid phase. have.

溶媒を用いる方法は、溶媒により希釈されているだめに
分子間の副反応を抑えることができるが、高温でのフリ
ーデル・クラフッ反応という厳しい条件のだめに溶媒自
身がN−(6−クロロプロピオニル)−インドリンと反
応し20〜30%の副生物を生成し、目的物である該化
合物の収率を大巾に低下させるという欠点を有している
。溶媒の回収にも多大のエネルギーを必要とする。
The method using a solvent can suppress intermolecular side reactions because it is diluted with the solvent, but the solvent itself is N-(6-chloropropionyl) due to the harsh conditions of the Friedel-Krach reaction at high temperatures. - It has the disadvantage that it reacts with indoline to produce 20 to 30% by-products, greatly reducing the yield of the target compound. Recovery of the solvent also requires a large amount of energy.

本発明者らは、該化合物を製造する際に本発明の無機の
溶融塩を溶媒として用いることにより、上記の諸々の欠
点を改良することができる製造方法を見出し本発明を完
成した。
The present inventors have discovered a production method that can improve the various drawbacks mentioned above by using the inorganic molten salt of the present invention as a solvent when producing the compound, and have completed the present invention.

以下本発明を説明する。The present invention will be explained below.

本発明で用いる塩化アルミニウムは一般のフリーデルク
ラフッ反応に用いられるものであれば特に限定されない
が無水塩化アルミであることが望才しい。
The aluminum chloride used in the present invention is not particularly limited as long as it is used in general Friedel-Craf reactions, but anhydrous aluminum chloride is preferable.

又、原料のN−(3−クロロプロピオニル)〜インドリ
ン1モルに対し塩化アルミニウムの使用量は1.5〜4
モル用いるのが好ましい。一方塩化カリウム及び塩化ナ
トリウムは塩化アルミニウム1モルに対しそれぞれ0.
1〜1.5モル及び0.04〜0・3モル用いるのが好
ましい。反応を行なうに際しては、原料のN−(3−ク
ロロプロピオニル)−インドリン、塩化アルミニウム、
塩化ナトリウム、塩化カリウムを低温例えば室温で充分
混合するのが好ましい。
Also, the amount of aluminum chloride used is 1.5 to 4 mols of N-(3-chloropropionyl) to indoline as raw materials.
Preferably, moles are used. On the other hand, potassium chloride and sodium chloride are each 0.0% per mole of aluminum chloride.
Preferably, 1 to 1.5 mol and 0.04 to 0.3 mol are used. When carrying out the reaction, the raw materials N-(3-chloropropionyl)-indoline, aluminum chloride,
It is preferable to thoroughly mix sodium chloride and potassium chloride at a low temperature, for example, room temperature.

反応温度は、一般のフリーデルクラフッ反応の温度と同
程度でよく1例えば110〜250℃の範囲で行なうこ
とができる。
The reaction temperature may be approximately the same as that of a general Friedel-Crach reaction, for example, in the range of 110 to 250°C.

本発明によれば溶融塩の希釈効果により分子間の副反応
を5〜6チに抑制することができる。溶媒を用いない方
法に比べ、モル当りの液量が増加しているので反応温度
の制御が容易であり、さらに昇華も防止することができ
、より安全に製造することが可能となった。水溶性の無
機塩を使用しているので、溶媒回収の操作を必要とせず
後処理が極めて容易である。
According to the present invention, side reactions between molecules can be suppressed to 5 to 6 times due to the dilution effect of the molten salt. Compared to a method that does not use a solvent, the amount of liquid per mole is increased, making it easier to control the reaction temperature, and furthermore, sublimation can be prevented, making it possible to produce more safely. Since a water-soluble inorganic salt is used, post-treatment is extremely easy without requiring any solvent recovery operation.

以下実施例をあげて本発明をさらに具体的に説明する。The present invention will be explained in more detail below by giving examples.

実施例1 N−(5〜クロログロビオニル)−(ントリン8.42
、無水塩化アルミニウム13if、塩化カリウム2、?
?と塩化ナトリウム1.12を室温で混ぜ150℃で4
0分間加熱(寵拌した。七の後、反応混合物を氷水中に
あけトルエンで有機物を抽出し水洗後芒硝で乾燥しトル
エンを濃縮すると6.72の目的物が得られた(粗収率
96.8%)内部標準法(標準物質ニジオクチルフタレ
ート。以下同じ)によるGL分析により純度は88%で
あった。純収率85.2係は5.7%であった。
Example 1 N-(5-chloroglobionyl)-(ntrin 8.42
, anhydrous aluminum chloride 13if, potassium chloride 2, ?
? and sodium chloride 1.12 were mixed at room temperature and heated to 150°C.
After 0 minutes of heating (stirring), the reaction mixture was poured into ice water and the organic matter was extracted with toluene, washed with water, dried over Glauber's salt, and the toluene was concentrated to obtain 6.72 of the desired product (crude yield: 96). Purity was found to be 88% by GL analysis using the internal standard method (standard substance nidioctyl phthalate; the same applies hereinafter).The pure yield, 85.2%, was 5.7%.

実施例2 N−(3−クロロプロピオニル)−(ンドリン8.4f
、無水塩化アルミニウム13.3F、塩化カリウム4.
47fと塩化ナトリウム1.17fを室温で混ぜ、15
0℃で45分間加熱(n拌した。
Example 2 N-(3-chloropropionyl)-(ndrine 8.4f
, anhydrous aluminum chloride 13.3F, potassium chloride 4.
Mix 47f and 1.17f of sodium chloride at room temperature,
Heat at 0° C. for 45 minutes (with stirring).

その後反応混合物を氷水中にあけトルエンで有機物を抽
出し水洗後芒硝で乾燥し、トルエンを濃縮すると6.6
79の目的物が得られた。(粗収率96・4%)。内部
標準法によるGC分析により純度は90.1%であった
。純収率は86.9%、分子間反応物はGC−面積比よ
り6%であった。
After that, the reaction mixture was poured into ice water, the organic matter was extracted with toluene, washed with water, dried with Glauber's salt, and the toluene was concentrated.
79 targets were obtained. (Crude yield 96.4%). Purity was found to be 90.1% by GC analysis using an internal standard method. The pure yield was 86.9%, and the amount of intermolecular reactants was 6% based on the GC-area ratio.

実施例3 N−(3−クロロプロピオニル)−1ンドリン8.4f
、無水塩化アルミニウム13・5f、塩化カリウム5.
96fと塩化ナトリウム1.179を室温で混ぜ150
℃で75分間加熱撹拌した。その後反応混合物を氷水中
にあけ、トルエンで有機物を抽出し、水洗後芒硝で乾燥
し、トルエンを濃縮すると6.63 f目的物が得られ
た。(粗収率95.8%)内部標準法によるGC−分析
により純度は90・0%であった。純収率は86.2%
1分子間反応物は(3c−面積比より5.7%であった
Example 3 N-(3-chloropropionyl)-1-ndrine 8.4f
, anhydrous aluminum chloride 13.5f, potassium chloride 5.
Mix 96f and 1.179 sodium chloride at room temperature 150
The mixture was heated and stirred at ℃ for 75 minutes. Thereafter, the reaction mixture was poured into ice water, organic matter was extracted with toluene, washed with water, dried over Glauber's salt, and the toluene was concentrated to obtain 6.63 f of the desired product. (Crude yield: 95.8%) Purity was found to be 90.0% by GC-analysis using an internal standard method. Net yield is 86.2%
The intermolecular reaction product was 5.7% (based on the 3c-area ratio).

実施例4 N−(3−10ロプロピオニル)−インドリン8・42
、無水塩化アルミニウム13・3り、塩化カリウム11
.2・11と塩化ナトリウム0.23Fを室温で混ぜ、
150℃で30分間加熱攪拌した。
Example 4 N-(3-10lopropionyl)-indoline 8.42
, anhydrous aluminum chloride 13.3, potassium chloride 11
.. Mix 2.11 and sodium chloride 0.23F at room temperature,
The mixture was heated and stirred at 150°C for 30 minutes.

その後反応混合物を氷水中にあけ、トルエンで有様物を
抽出し水洗後芒硝で乾燥し、トルエンを濃縮すると6.
57fの目的物が得られた。(粗収率94.9 % )
内部標準法によるGC分析により純度は89.0%であ
った純収率は84.5%、分子間反応物はGC−面積比
より5.5%であった。
After that, the reaction mixture was poured into ice water, the substances were extracted with toluene, washed with water, dried with Glauber's salt, and the toluene was concentrated. 6.
A target object of 57f was obtained. (crude yield 94.9%)
The purity was 89.0% by GC analysis using the internal standard method, the pure yield was 84.5%, and the intermolecular reaction product was 5.5% based on the GC-area ratio.

実施例5 N−(5−クロロプロピオニル)−インドリン8−4F
、無水塩化アルミニウム13.35’、塩化カリウム0
・752と塩化ナトリウム1.645’を室温で混ぜ、
150℃で45分間加熱1党拌した。その後反応混合物
を氷水中にあけ、トルエンで有機物を抽出し水洗後芒硝
で乾燥し、トルエンを濃縮すると、6.55fの目的物
が得られた。(粗収率94・6%)内部標準法によるG
C分析により純度は89.0%であった。純収率は84
.2%、分子間反応物はGC−面積比より6%であった
Example 5 N-(5-chloropropionyl)-indoline 8-4F
, anhydrous aluminum chloride 13.35', potassium chloride 0
・Mix 752 and 1.645' of sodium chloride at room temperature,
The mixture was heated at 150° C. for 45 minutes and stirred once. Thereafter, the reaction mixture was poured into ice water, organic matter was extracted with toluene, washed with water, dried over Glauber's salt, and the toluene was concentrated to obtain 6.55f of the desired product. (Crude yield 94.6%) G by internal standard method
Purity was found to be 89.0% by C analysis. The net yield is 84
.. 2%, and the intermolecular reaction product was 6% based on the GC-area ratio.

比較例1 N−(3−10ロプロピオニル)−1ントリン8.4F
、無水塩化アルミニウム13.3 rを1.2.4−ト
リクロロベンゼンを室温で混ぜ150℃で60分間加熱
攪拌した。その後反応混合物を氷水中にあけトルエンで
有機物を抽出し水洗後トルエンを濃縮留去した濃縮残を
水蒸気蒸留してトリクが得られた。(粗収率100%) 内部標準法によるGC分析により純度−71%であった
。純収率71%。
Comparative Example 1 N-(3-10lopropionyl)-1thrin 8.4F
, 13.3 r of anhydrous aluminum chloride and 1,2,4-trichlorobenzene were mixed at room temperature, and the mixture was heated and stirred at 150° C. for 60 minutes. Thereafter, the reaction mixture was poured into ice water, organic matter was extracted with toluene, and after washing with water, the toluene was concentrated and distilled off. The concentrated residue was steam distilled to obtain trichloride. (Crude yield: 100%) Purity was -71% by GC analysis using the internal standard method. Net yield 71%.

なおGC−面積比より分子間反応物は0.8%であり溶
媒との反応物は20チ前後であった。
The GC-area ratio showed that the amount of intermolecular reactants was 0.8%, and the amount of reactants with the solvent was about 20%.

比較例2 N−(3−クロロプロピオニル)−1ントリン8.47
と無水塩化アルミニウム11.79を室温での目的物が
得られた(粗収率95%)内部標準法によるGC分析よ
り純度は85%であった。純収率は81チであった。
Comparative Example 2 N-(3-chloropropionyl)-1thrin 8.47
The desired product was obtained from 11.79% of anhydrous aluminum chloride at room temperature (crude yield: 95%).The purity was 85% according to GC analysis using the internal standard method. The net yield was 81 cm.

分子間反応物は11チであった。The number of intermolecular reactants was 11.

特許出願人  日本化拓株式会社Patent applicant: Nippon Kataku Co., Ltd.

Claims (2)

【特許請求の範囲】[Claims] (1)N−(3−クロロプロピオニル)−インドリンを
、塩化アルミニウム、塩化カリウム及び塩化ナトリウム
の溶融塩の存在下環化させることを特徴とするL 2.
5.6−テトラヒドロ−4H−ピロロL’+L1−1.
jJ−キノリン−4−オンの製造方法。
(1) L characterized by cyclizing N-(3-chloropropionyl)-indoline in the presence of molten salts of aluminum chloride, potassium chloride and sodium chloride 2.
5.6-tetrahydro-4H-pyrrolo L'+L1-1.
Method for producing jJ-quinolin-4-one.
(2)N−(3−クロロプロピオニル)−インドリン1
モルに対し、塩化アルミニウム1.5〜4モルを用い、
塩化カリウム及び塩化ナトリウムは塩化アルミニウム1
モルに対し、それぞれ0.1〜1.5モル、0.04〜
0.5モルを用い、110℃〜250℃で反応を行なわ
せる特許請求の範囲第1項記載の製造方法。
(2) N-(3-chloropropionyl)-indoline 1
Using 1.5 to 4 moles of aluminum chloride per mole,
Potassium chloride and sodium chloride are aluminum chloride 1
0.1 to 1.5 mol and 0.04 to 1.5 mol, respectively
The manufacturing method according to claim 1, wherein the reaction is carried out at 110°C to 250°C using 0.5 mol.
JP669283A 1983-01-20 1983-01-20 Preparation of 1,2,5,6-tetrahydro-4h-pyrrolo(3,2,1-i,j)- quinolin-4-one Pending JPS59134792A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP669283A JPS59134792A (en) 1983-01-20 1983-01-20 Preparation of 1,2,5,6-tetrahydro-4h-pyrrolo(3,2,1-i,j)- quinolin-4-one

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP669283A JPS59134792A (en) 1983-01-20 1983-01-20 Preparation of 1,2,5,6-tetrahydro-4h-pyrrolo(3,2,1-i,j)- quinolin-4-one

Publications (1)

Publication Number Publication Date
JPS59134792A true JPS59134792A (en) 1984-08-02

Family

ID=11645395

Family Applications (1)

Application Number Title Priority Date Filing Date
JP669283A Pending JPS59134792A (en) 1983-01-20 1983-01-20 Preparation of 1,2,5,6-tetrahydro-4h-pyrrolo(3,2,1-i,j)- quinolin-4-one

Country Status (1)

Country Link
JP (1) JPS59134792A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4595755A (en) * 1982-03-25 1986-06-17 Ciba-Geigy Corporation 5-halo-1,2,3-(1,2-dihydropyrrolo)-4-quinolones
EP0807631A1 (en) * 1996-05-15 1997-11-19 Sankyo Company Limited Tricyclic compounds having fungicidal activity, their preparation and their use

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4595755A (en) * 1982-03-25 1986-06-17 Ciba-Geigy Corporation 5-halo-1,2,3-(1,2-dihydropyrrolo)-4-quinolones
EP0807631A1 (en) * 1996-05-15 1997-11-19 Sankyo Company Limited Tricyclic compounds having fungicidal activity, their preparation and their use

Similar Documents

Publication Publication Date Title
JPS61293949A (en) Optical resolution of alpha-isopropyl-p-chlorophenylacetic acid
JPH0579055B2 (en)
JPS59134792A (en) Preparation of 1,2,5,6-tetrahydro-4h-pyrrolo(3,2,1-i,j)- quinolin-4-one
US4054585A (en) Furan-3-carboxamide derivatives and method of preparing same
JPS5931509B2 (en) Method for producing 3-hydroxy-3-methylphthalide or its nuclear substituted product
SU1397441A1 (en) Method of producing 1,8-naphthsultame
SU717046A1 (en) Method of preparing 3-aryl-5-phenyl-1-(4-formyl-phenyl)-2-pyrazolines
SU724510A1 (en) Method of purifying 2,7-diaminodiphenylsulfone
JP3892963B2 (en) Method for producing L-valine benzyl ester p-toluenesulfonate
CN106632001A (en) Preparation method of 4-(bromoacetyl) pyridine hydrobromide
SU792872A1 (en) Method of preparing 2-(isoxazolyl-5)-benzoic acid
JPH07206816A (en) Preparation of 2,4,5-tribromopyrrole-3-carbonitrile
SU376374A1 (en) METHOD OF OBTAINING
US443402A (en) Marcel v
SU825497A1 (en) Method of preparing tetrachlorophthaleic acids or tetrachlorophthaleic anhydride
SU279622A1 (en) The method of obtaining 3- (5 "-nitro-2" -furfurylideneamino) -2-oxazolidone (furazolidone)
SU79296A1 (en) Method for preparing iodoacetic acid derivatives
JPS61151158A (en) Benzoylbenzoic acid derivative and its preparation
JPS6050176B2 (en) Method for producing 1-chloro-2-methylanthraquinone
JPS5867675A (en) Manufacture of 1-aryl-3-arylamino-2-pyrazolin- 5-one
SU713869A1 (en) Method of preparing 2-methyl-6(7)-(triphenyliodidephosphoniomethyl)-quinolines
JP2022533485A (en) Process for preparing salicylamine acetate
SU430091A1 (en) METHOD OF OBTAINING 9,10-DIPHENILANTRACENE
SU380652A1 (en) USSR Academy of Sciences
JPH01313471A (en) Production of n-sulfamoylamidine compound