Binaphthyl-Modified Quaternary Phosphonium Salts as Chiral Phase Transfer Catalysts: Application to Asymmetric Amination of β-Keto Esters

被引：44

作者：

He, Rongjun ^{[1
]}

Maruoka, Keiji ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Sci, Dept Chem, Sakyo Ku, Kyoto 6068502, Japan

来源：

SYNTHESIS-STUTTGART | 2009年 / 13期

关键词：

amination; asymmetric synthesis; phase-transfer catalysis; phosphonium salts; SUBSTITUTED ALPHA-CYANOACETATES; ALDOSE REDUCTASE INHIBITOR; ELECTROPHILIC AMINATION; AS-3201; ALKYLATION;

D O I：

10.1055/s-0029-1216848

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A chiral quaternary tetraatkylphosphonium salt has been successfully utilized for the first time as a phase-transfer catalyst for asymmetric amination of beta-keto esters in high yield with high ee. Asymmetric amination of a cyclic five-mernbered beta-keto ester is a valuable method for preparing a key intermediate for asymmetric synthesis of aldose reductase inhibitor AS-3201 (Ranirestat).

引用

页码：2289 / 2292

页数：4

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