JPH11199563A - Production of optically active piperidines - Google Patents

Production of optically active piperidines

Info

Publication number
JPH11199563A
JPH11199563A JP10000621A JP62198A JPH11199563A JP H11199563 A JPH11199563 A JP H11199563A JP 10000621 A JP10000621 A JP 10000621A JP 62198 A JP62198 A JP 62198A JP H11199563 A JPH11199563 A JP H11199563A
Authority
JP
Japan
Prior art keywords
group
optically active
compound
hydrocarbon
formula
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
JP10000621A
Other languages
Japanese (ja)
Other versions
JP3691235B2 (en
Inventor
Osamu Kobayashi
修 小林
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.)
Japan Science and Technology Agency
Original Assignee
Japan Science and Technology Corp
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 Japan Science and Technology Corp filed Critical Japan Science and Technology Corp
Priority to JP00062198A priority Critical patent/JP3691235B2/en
Publication of JPH11199563A publication Critical patent/JPH11199563A/en
Application granted granted Critical
Publication of JP3691235B2 publication Critical patent/JP3691235B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/52Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Plural Heterocyclic Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Hydrogenated Pyridines (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain the subject compound useful as a medicine, agrochemical, perfume, etc., by reacting a specific aldimine compound with a specific Danishefsky's diene in the presence of an optically active Lewis acid catalyst. SOLUTION: (A) An aldimine of formula I (R<1> is a hydrocarbon or the like which may have a functional group; R<2> is a hydrocarbon or the like having OH at α-position) is reacted with (B) a Danishefsky's diene of formula II (R<3> is H or the like; R<4> is a hydrocarbon; R1 to R3 are each a hydrocarbon) in the presence of (C) an optically active Lewis acid catalyst to provide the objective compound of formula IV, etc., [e.g. a compound of formula V (Ph is phenyl)]. The component A include e.g. a material synthesized from O-tolualdehyde and 2-aminophenol. The component C is preferably a catalyst obtained by modifying zirconium as a center metal with optically active 1,1-bi-2-naphthols and a nitrogen-containing cyclic compound.

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】この出願の発明は、光学活性
ピペリジン類の製造方法に関するものである。さらに詳
しくは、この出願の発明は、医薬、農薬、香料、あるい
はその合成中間体等として有用な、光学活性ピペリジン
類の製造方法に関するものである。
The present invention relates to a method for producing optically active piperidines. More specifically, the invention of this application relates to a method for producing optically active piperidines useful as pharmaceuticals, agricultural chemicals, fragrances, or synthetic intermediates thereof.

【0002】[0002]

【従来の技術とその課題】従来より、光学活性なピペリ
ジン類やテトラヒドロキノリン類などの複素環化合物の
合成方法として、不斉アザ ディールス−アルダー反応
は有用な手法であると考えられている。なかでも、一般
に高価である不斉源の必要量が少なく、かつ適用範囲の
広い、触媒量の不斉源を用いたエナンチオ選択的な不斉
アザ ディールス−アルダー反応の実用的な手法の開発
が急がれていた。しかしながら、これまでジアステレオ
選択的な反応はいくつか知られているものの(たとえ
ば、a>E.Borrione, M.Prato, G.Scorrano, M.Stiranell
o, J.Chem.Soc., Perkin Trans.1 1989, 2245-2250; b>
H.Waldmann, M.Braun, M.Drager, Angew.Chem.,Int,E
d,Engl,1990, 1468-1471; c> P.D.Bailey, D.J.Londesb
rough, T.C.Hancox, J.D.Heffernan, A.B.Holmes, J.Ch
em.Soc., Chem.Commun.1994, 2543-2544; d> A.K.McFar
lane, G.Thomas, A.Whiting, J.Chem.Soc., Perkin Tra
ns.1 1995, 2803-2808; e> E.P.Kundig, L.H.Xu, P.Rom
anens, G.Bernardinelli, Synlett 1996,270-272.) 、
エナンチオ選択的な不斉アザ ディールス−アルダー反
応はほとんど報告されていない。また、山本らのキラル
なホウ素化合物を用いた、アルジミンとダニシエフスキ
ージエンとのエナンチオ選択的な不斉アザ ディールス
−アルダー反応は優れた手法ではあるが、化学量論以上
の不斉源を必要とする点で実用性に欠ける(a> K.Hatto
ri, H.Yamamoto, J.Org.Chem.1992, 57, 3264-3265;b>
K.Hattori, H.Yamamoto, Tetrahedron 1993, 49, 1749-
1760; c> K.Ishihara, M.Miyata, K.Hattori, T.Tada,
H.Yamamoto, J.Am.Chem.Soc.1994, 116,10520-1052
4.)。
2. Description of the Related Art Asymmetric azadirs-Alder reaction is considered to be a useful technique for synthesizing heterocyclic compounds such as optically active piperidines and tetrahydroquinolines. In particular, the development of a practical method for the enantioselective asymmetric aza-Diels-Alder reaction using a catalytic amount of an asymmetric source, which requires a small amount of an asymmetric source, which is generally expensive, and has a wide range of applications. I was in a hurry. However, although some diastereoselective reactions have been known (eg, a> E. Borrione, M. Prato, G. Scorrano, M. Stiranell)
o, J. Chem. Soc., Perkin Trans. 1 1989, 2245-2250; b>
H. Waldmann, M. Braun, M. Drager, Angew. Chem., Int, E
d, Engl, 1990, 1468-1471; c> PDBailey, DJLondesb
rough, TCHancox, JDHeffernan, ABHolmes, J.Ch
em.Soc., Chem.Commun. 1994, 2543-2544; d> AKMcFar
lane, G. Thomas, A. Whiting, J. Chem. Soc., Perkin Tra
ns. 1 1995, 2803-2808; e> EPKundig, LHXu, P. Rom
anens, G. Bernardinelli, Synlett 1996, 270-272.)
Few enantioselective asymmetric Aza Diels-Alder reactions have been reported. In addition, the enantioselective asymmetric aza-Diels-Alder reaction between aldimine and Danishyevsky diene using a chiral boron compound by Yamamoto et al. Is an excellent technique, but requires an asymmetric source of stoichiometric or higher. Lacks practicality (a> K. Hatto
ri, H. Yamamoto, J. Org. Chem. 1992, 57, 3264-3265; b>
K. Hattori, H. Yamamoto, Tetrahedron 1993, 49, 1749-
1760; c> K. Ishihara, M. Miyata, K. Hattori, T. Tada,
H. Yamamoto, J. Am. Chem. Soc. 1994, 116, 10520-1052
Four.).

【0003】そこで、この出願の発明は、以上のような
従来技術の限界を克服し、医薬、農薬、香料、あるいは
それらの合成中間体として有用な、光学活性な複素環化
合物を、触媒量の不斉源でエナンチオ選択的に行うこと
のできる新しい手法の提供を課題としている。
Accordingly, the invention of this application overcomes the limitations of the prior art described above, and provides an optically active heterocyclic compound useful as a pharmaceutical, agrochemical, a fragrance, or a synthetic intermediate thereof in a catalytic amount. The task is to provide a new method that can be performed enantioselectively with an asymmetric source.

【0004】[0004]

【課題を解決するための手段】この出願は、以上のとお
りの課題を解決するために、まず第1の発明として、次
式(I)
In order to solve the above-mentioned problems, the present application first provides a first invention as follows:

【0005】[0005]

【化4】 Embedded image

【0006】(式中のR1 は、官能基を有してもよい炭
化水素基または複素環基を示し、R2は、α位に水酸基
を有する炭化水素基または複素環基を示し、R3 は、水
素原子または官能基を有してもよい炭化水素基または複
素環基を示す)で表わされる光学活性ピペリジン類の製
造方法であって、次式(II)
(Wherein R 1 represents a hydrocarbon group or a heterocyclic group which may have a functional group; R 2 represents a hydrocarbon group or a heterocyclic group having a hydroxyl group at the α-position; 3 represents a hydrogen atom or a hydrocarbon group or a heterocyclic group which may have a functional group), and is a method for producing an optically active piperidine represented by the following formula (II)

【0007】[0007]

【化5】 Embedded image

【0008】(R1 およびR2 は、前記と同一のものを
示す)で表わされるアルジミン化合物と、次式(III)
An aldimine compound represented by the formula (III) wherein R 1 and R 2 are the same as described above;

【0009】[0009]

【化6】 Embedded image

【0010】(R3 は、前記と同一のものを示し、R4
は炭化水素基を示し、R1 、R2 、R 3 は各々、炭化水
素基を示す)で表わされるダニシエフスキージエンと
を、光学活性なルイス酸触媒の存在下に反応させること
を特徴とする光学活性ピペリジン類の製造方法を提供す
る。また、この出願は、上記の第1の発明に関連して、
第2の発明として、光学活性なルイス酸触媒は、ジルコ
ニウム、ハフニウムまたはチタンを中心金属として、こ
の中心金属を光学活性な1,1′−ビ−2−ナフトール
類および含窒素環状化合物により修飾した触媒である製
造方法を、第3の発明として、光学活性な1,1′−ビ
−2−ナフトール類は、その3,3′位および6,6′
位のいずれか、もしくは両方が置換基で修飾されている
製造方法を、第4の発明として、置換基が、ハロゲン原
子、低級アルキル基、アルコキシ基、アリール基、アリ
ールオキシ基である製造方法を、第5の発明として、光
学活性な1,1′−ビ−2−ナフトール類が、6,6′
−ジブロモ−1,1′−ビ−2−ナフトールである製造
方法をも提供する。
(RThreeRepresents the same as above, and RFour
Represents a hydrocarbon group;1, RTwo, R ThreeIs a hydrocarbon
Which represents a radical)
In the presence of an optically active Lewis acid catalyst
To provide a method for producing optically active piperidines characterized by the following:
You. This application relates to the first invention described above,
As a second invention, an optically active Lewis acid catalyst is
, Hafnium or titanium as the central metal
Optically active 1,1'-bi-2-naphthol
And catalysts modified with nitrogen-containing cyclic compounds
The manufacturing method according to the third invention is an optically active 1,1'-bi
-2-naphthols are 3,3'-position and 6,6'-position.
One or both positions are modified with a substituent
The production method is a fourth invention, wherein the substituent is a halogen atom.
, Lower alkyl group, alkoxy group, aryl group, ant
The fifth aspect of the present invention relates to a method for producing
Biologically active 1,1'-bi-2-naphthols are 6,6 '
-Dibromo-1,1'-bi-2-naphthol
A method is also provided.

【0011】[0011]

【発明の実施の形態】この出願の発明は以上のとおりの
特徴を持つものであるが、以下に、その実施の形態につ
いて詳細に説明する。まず、前記の式(I)の目的化合
物としての光学活性ピペリジン類と、これを合成するた
めの原料化合物としての式(II)のアルジミン化合物並
びに式(III)のシリルエーテル化合物については、式中
の符号R1 、R2 、R3 は、R3 が水素原子である場合
を除いていずれも官能基を有してもよい炭化水素基また
は複素環基を示し、R4 は炭化水素基を、さらにR1
2 およびR3 も炭化水素基を示している。
BEST MODE FOR CARRYING OUT THE INVENTION The invention of this application has the features as described above, and the embodiments will be described in detail below. First, an optically active piperidine as a target compound of the above formula (I), an aldimine compound of the formula (II) and a silyl ether compound of the formula (III) as raw materials for synthesizing the same are represented by the formulas R 1 , R 2 , and R 3 each represent a hydrocarbon group or a heterocyclic group which may have a functional group except when R 3 is a hydrogen atom, and R 4 represents a hydrocarbon group. , And R 1 ,
R 2 and R 3 also represent a hydrocarbon group.

【0012】これらのうち、炭化水素基については、飽
和または不飽和の、鎖状または環状の脂肪族炭化水素
基、単環または多環の芳香族炭化水素基、もしくは芳香
脂肪族炭化水素基のうちの各種のものであってよい。R
1 、R2 およびR3 の炭化水素基は、反応時において離
脱するシリルエーテル基を構成するものであることか
ら、入手や合成のしやすさ、反応操作性等の観点より、
低級の脂肪族炭化水素基およびフェニル基であることが
好ましい。
Among them, the hydrocarbon group includes a saturated or unsaturated, chain or cyclic aliphatic hydrocarbon group, a monocyclic or polycyclic aromatic hydrocarbon group, or an araliphatic hydrocarbon group. It may be various ones. R
Since the hydrocarbon groups of 1 , R 2 and R 3 constitute a silyl ether group which is eliminated during the reaction, from the viewpoints of availability and ease of synthesis and reaction operability,
It is preferably a lower aliphatic hydrocarbon group or a phenyl group.

【0013】R1 、R2 およびR3 についての複素環基
も各種のものであってよく、単環または多環の、含窒
素、含酸素、含硫黄複素環を構成する適宜なものでよ
い。R1 、R2 、R3 の炭化水素基または複素環基に結
合してもよい官能基については、この発明の反応を阻害
しないものであれば任意であってよく、たとえば各種の
炭化水素基をはじめ、ハロゲン原子、ヒドロキシ基、ア
ルコキシ基、エステル基、アミド基、ニトロ基、シアノ
基、ウレア基、スルフィド基、チオエーテル基、チオエ
ステル基等であってよい。
The heterocyclic groups for R 1 , R 2 and R 3 may be of various types, and may be any of those which constitute a monocyclic or polycyclic nitrogen-containing, oxygen-containing or sulfur-containing heterocyclic ring. . The functional group which may be bonded to the hydrocarbon group or heterocyclic group of R 1 , R 2 and R 3 may be any as long as it does not inhibit the reaction of the present invention. And a halogen atom, a hydroxy group, an alkoxy group, an ester group, an amide group, a nitro group, a cyano group, a urea group, a sulfide group, a thioether group, a thioester group and the like.

【0014】反応原料物質としての式(II)のアルジミ
ン化合物並びに式(III)のダニシエフスキージエン化合
物の使用量については、そのモル比として、一般的に
は、1:0.5〜3、より好ましくは1:0.8〜1.
5程度とすることができる。この発明では、反応には、
光学活性なルイス酸触媒を用いるが、なかでも、中心と
なる金属元素を光学活性な有機化合物により修飾したも
のとするのが好ましい。この場合の金属元素は、遷移金
属であることが好ましく、なかでも、Zr(ジルコニウ
ム)、Hf(ハフニウム)、またはTi(チタン)がよ
り好ましいものとして考慮される。
The amounts of the aldimine compound of the formula (II) and the Danishyevsky diene compound of the formula (III) as the reaction raw materials are generally in a molar ratio of 1: 0.5 to 3, More preferably 1: 0.8-1.
It can be about 5. In the present invention, the reaction includes:
Although an optically active Lewis acid catalyst is used, it is preferable that the central metal element is modified with an optically active organic compound. In this case, the metal element is preferably a transition metal, and among them, Zr (zirconium), Hf (hafnium), or Ti (titanium) is considered as being more preferable.

【0015】この発明では、これらの中心金属元素を、
たとえば光学活性な1,1′−ビ−2−ナフトール類お
よび含窒素環状化合物により修飾する。光学活性な1,
1′−ビ−2−ナフトール類として、その代表的な好ま
しい例としては、(R)体または(S)体の1,1′−
ビ−2−ナフトールの3,3′位および6,6′位のい
ずれか、もしくは両方をハロゲン原子、低級アルキル
基、アルコキシ基、アリール基、アリールオキシ基置換
基で修飾されたものを例示することができる。さらに、
中心金属原子への配位子として作用していると思われる
含窒素環状化合物としては、ピリジン類、ピラゾール
類、イミダゾール類、ピペリジン類などを用いることが
出来るが、特に好適なのはN−メチルイミダゾールやジ
メチルイミダゾールなどの置換イミダゾール類である。
In the present invention, these central metal elements are
For example, it is modified with an optically active 1,1'-bi-2-naphthol and a nitrogen-containing cyclic compound. Optically active 1,
Representative preferred examples of the 1'-bi-2-naphthols include (R) -form and (S) -form 1,1'-form.
Bi-2-naphthol in which one or both of the 3,3'-position and 6,6'-position or both are modified with a halogen atom, a lower alkyl group, an alkoxy group, an aryl group, or an aryloxy group substituent is exemplified. be able to. further,
Pyridines, pyrazoles, imidazoles, piperidines and the like can be used as the nitrogen-containing cyclic compound which seems to act as a ligand to the central metal atom, and particularly preferable are N-methylimidazole and Substituted imidazoles such as dimethylimidazole.

【0016】これらの光学活性なルイス酸触媒は、反応
においては、原料である式(II)アルジミン化合物に対
し、モル比で、0.01〜0.5程度、より好ましくは
0.05〜0.3程度の割合で用いることができる。反
応溶媒としては、ベンゼン、トルエン等の芳香族炭化水
素、脂肪族炭化水素、ハロゲン系炭化水素の各種のもの
であってよいが、原料化合物に対して適度の溶解力を持
ち、凝固点が反応温度以下である必要がある。一般的に
は、トルエンなどの比較的低沸点の芳香族炭化水素が好
適である。また、反応温度は、一般的には、−100℃
から常温の範囲において適宜選択されるが、反応の立体
選択性を向上させるためには、反応が適当な速度で進行
する範囲でなるべく低温であることが望ましい。
In the reaction, these optically active Lewis acid catalysts are used in a molar ratio of about 0.01 to 0.5, more preferably 0.05 to 0, with respect to the raw material of the formula (II) aldimine compound. .3 can be used. As the reaction solvent, various kinds of aromatic hydrocarbons such as benzene and toluene, aliphatic hydrocarbons, and halogenated hydrocarbons may be used. Must be: Generally, relatively low boiling aromatic hydrocarbons such as toluene are preferred. The reaction temperature is generally -100 ° C.
The temperature is appropriately selected in the range of from room temperature to normal temperature. In order to improve the stereoselectivity of the reaction, it is desirable that the temperature be as low as possible within a range in which the reaction proceeds at an appropriate rate.

【0017】このようにして得られた光学活性ピペリジ
ン類は、置換基R2 を選択的に除去することも可能であ
る。この様な例として例えば、R2 として2−アミノフ
ェノール類を用いた場合、フェノール性水酸基をメチル
化後、硝酸セリウムアンモニウムで処理することにより
2 を除去できる。以下、実施例を示し、さらに詳しく
この出願の発明について詳しく説明する。
From the optically active piperidines thus obtained, the substituent R 2 can be selectively removed. As such example in the case of using a 2-aminophenols as R 2, after methylation of phenolic hydroxyl group can be removed R 2 by treatment with cerium ammonium nitrate. Hereinafter, examples will be shown, and the invention of this application will be described in more detail.

【0018】[0018]

【実施例】実施例1 Zr(Ot Bu)4 (0.04mmol)のトルエン
(0.25ml)溶液に、(R)−6,6′−ジブロモ
−1,1′−ビ−2−ナフトール(0.088mmo
l)のトルエン(0.5ml)溶液と、N−メチルイミ
ダゾール(0.12mmol)のトルエン(0.25m
l)溶液を室温で添加した。混合液を1時間同じく室温
において攪拌した。次いで−45℃に冷却した。以上に
より、反応触媒としての光学活性ジルコニウム化合物を
調整した。
EXAMPLES toluene (0.25 ml) solution of Example 1 Zr (O t Bu) 4 (0.04mmol), (R) -6,6'- dibromo-1,1'-bi-2-naphthol (0.088mmo
l) in toluene (0.5 ml) and N-methylimidazole (0.12 mmol) in toluene (0.25 m
l) The solution was added at room temperature. The mixture was stirred for 1 hour at room temperature as well. It was then cooled to -45C. Thus, an optically active zirconium compound as a reaction catalyst was prepared.

【0019】このものに、Oートルアルデヒドと2−ア
ミノフェノールとから合成したアルジミン化合物(0.
4mmol)と、次式
An aldimine compound synthesized from O-tolualdehyde and 2-aminophenol (0.
4 mmol) and the following formula

【0020】[0020]

【化7】 Embedded image

【0021】で表わされるダニシエフルキージエン
(0.6mmol)とのトルエン溶液(0.75ml)
を添加し、同じく−45℃の温度において35時間攪拌
した。次いで、NaHCO3 の飽和水溶液を添加して反
応を終了させた。水相をジクロロメタンにより抽出し、
溶媒を減圧留去して粗生成物を得た。このものをTHF
−1N塩酸(20:1)に溶解して30分間攪拌後、溶
媒を減圧留去し、シリカゲルカラムクロマトグラフィー
により精製して目的とする次式の光学活性ピペリジンを
収率81%、光学純度76%で得た。
Toluene solution (0.75 ml) with Danish flucidienes (0.6 mmol)
Was added and the mixture was stirred at a temperature of -45 ° C for 35 hours. Next, a saturated aqueous solution of NaHCO 3 was added to terminate the reaction. The aqueous phase is extracted with dichloromethane,
The solvent was distilled off under reduced pressure to obtain a crude product. This is THF
After dissolving in 1N hydrochloric acid (20: 1) and stirring for 30 minutes, the solvent was distilled off under reduced pressure and the residue was purified by silica gel column chromatography to obtain the target optically active piperidine of the following formula in 81% yield and 76% optical purity. %.

【0022】[0022]

【化8】 Embedded image

【0023】このものの物性値は次のとおりのものとし
て同定された。
The physical properties of this product were identified as follows.

【0024】[0024]

【表1】 [Table 1]

【0025】実施例2 実施例1と同様にして、各種のアルジミン化合物とダニ
シエフスキージエンとを、前記光学活性ジルコニウム触
媒の量比を変えて反応させた。その結果を表2に示し
た。
Example 2 In the same manner as in Example 1, various aldimine compounds and Danishyevsky diene were reacted by changing the amount ratio of the optically active zirconium catalyst. The results are shown in Table 2.

【0026】[0026]

【表2】 [Table 2]

【0027】実施例3 実施例1において、アルジミン化合物を、α−ナフチル
アルデヒドと2−アミノ−フェノールとの反応により得
られたものを用い、かつ、触媒として、Zr、Hfおよ
びTiの金属元素の各々の光学活性ルイス酸触媒を調整
し、このものを各々、10または20モル%用いて実施
例1と同様にして反応させた。
Example 3 In Example 1, an aldimine compound was used which was obtained by the reaction of α-naphthyl aldehyde with 2-amino-phenol, and as a catalyst, a metal element of Zr, Hf and Ti was used. Each optically active Lewis acid catalyst was prepared and reacted in the same manner as in Example 1 using 10 or 20 mol% of each.

【0028】その結果を表3に示した。The results are shown in Table 3.

【0029】[0029]

【表3】 [Table 3]

【0030】[0030]

【発明の効果】以上詳しく説明したとおり、この出願の
発明によって、光学活性なピペリジン類を、触媒量の不
斉源を用いたエナンチオ選択的なアザ ディールス−ア
ルダー反応により合成することが可能となる。
As described above in detail, the invention of this application makes it possible to synthesize optically active piperidines by an enantioselective aza-Diels-Alder reaction using a catalytic amount of an asymmetric source. .

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 FI C07M 7:00 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 6 Identification code FI C07M 7:00

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 次式(I) 【化1】 (式中のR1 は、官能基を有してもよい炭化水素基また
は複素環基を示し、R2は、α位に水酸基を有する炭化
水素基または複素環基を示し、R3 は、水素原子または
官能基を有してもよい炭化水素基または複素環基を示
す)で表わされる光学活性ピペリジン類の製造方法であ
って、次式(II) 【化2】 (R1 およびR2 は、前記と同一のものを示す)で表わ
されるアルジミン化合物と、次式(III) 【化3】 (R3 は、前記と同一のものを示し、R4 は炭化水素基
を示し、R1 、R2 、R 3 は各々、炭化水素基を示す)
で表わされるダニシエフスキージエンとを、光学活性な
ルイス酸触媒の存在下に反応させることを特徴とする光
学活性ピペリジン類の製造方法。
(1) The following formula (I):(R in the formula1Is a hydrocarbon group which may have a functional group or
Represents a heterocyclic group;TwoIs a carbonized compound having a hydroxyl group at the α-position.
A hydrogen group or a heterocyclic group;ThreeIs a hydrogen atom or
Represents a hydrocarbon group or a heterocyclic group which may have a functional group.
The method for producing optically active piperidines represented by
Thus, the following formula (II)(R1And RTwoIs the same as above)
And an aldimine compound represented by the following formula (III):(RThreeRepresents the same as above, and RFourIs a hydrocarbon group
And R1, RTwo, R ThreeEach represents a hydrocarbon group)
And Danishevsky diene represented by the optically active
Light characterized by reacting in the presence of a Lewis acid catalyst
Method for producing biologically active piperidines.
【請求項2】 光学活性なルイス酸触媒は、ジルコニウ
ム、ハフニウムまたはチタンを中心金属として、この中
心金属を光学活性な1,1′−ビ−2−ナフトール類お
よび含窒素環状化合物により修飾した触媒である請求項
1の製造方法。
2. An optically active Lewis acid catalyst comprising zirconium, hafnium or titanium as a central metal and the central metal modified with an optically active 1,1'-bi-2-naphthol or a nitrogen-containing cyclic compound. 2. The method according to claim 1, wherein
【請求項3】 光学活性な1,1′−ビ−2−ナフトー
ル類は、その3,3′位および6,6′位のいずれか、
もしくは両方が置換基で修飾されている請求項2の製造
方法。
3. An optically active 1,1′-bi-2-naphthol, which comprises one of its 3,3′-position and 6,6′-position,
3. The method according to claim 2, wherein both are modified with a substituent.
【請求項4】 置換基が、ハロゲン原子、低級アルキル
基、アルコキシ基、アリール基、アリールオキシ基であ
る請求項3の製造方法。
4. The method according to claim 3, wherein the substituent is a halogen atom, a lower alkyl group, an alkoxy group, an aryl group, or an aryloxy group.
【請求項5】 光学活性な1,1′−ビ−2−ナフトー
ル類が、6,6′−ジブロモ−1,1′−ビ−2−ナフ
トールである請求項4の製造方法。
5. The method according to claim 4, wherein the optically active 1,1′-bi-2-naphthol is 6,6′-dibromo-1,1′-bi-2-naphthol.
JP00062198A 1998-01-06 1998-01-06 Process for producing optically active piperidines Expired - Fee Related JP3691235B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009191026A (en) * 2008-02-15 2009-08-27 Japan Science & Technology Agency Process for preparing optically active piperidine derivative
JP2009215222A (en) * 2008-03-11 2009-09-24 Japan Science & Technology Agency Method for producing optically active 1,2-diamine compound and optically active catalyst

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009191026A (en) * 2008-02-15 2009-08-27 Japan Science & Technology Agency Process for preparing optically active piperidine derivative
JP2009215222A (en) * 2008-03-11 2009-09-24 Japan Science & Technology Agency Method for producing optically active 1,2-diamine compound and optically active catalyst

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Publication number Publication date
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