Lewis Base Assisted Bronsted Base Catalysis: Bidentate Phosphine Oxides as Activators and Modulators of Bronsted Basic Lanthanum-Aryloxides

被引：46

作者：

Morimoto, Hiroyuki ^{[1
]}

Yoshino, Tatsuhiko ^{[1
]}

Yukawa, Takafumi ^{[1
]}

Lu, Gang ^{[1
]}

Matsunaga, Shigeki ^{[1
]}

Shibasaki, Masakatsu ^{[1
]}

机构：

[1] Univ Tokyo, Grad Sch Pharmaceut Sci, Bunkyo Ku, Tokyo 1130033, Japan

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2008年 / 47卷 / 47期

关键词：

amino acids; Bronsted bases; combined catalysis; lanthanum; Lewis bases;

D O I：

10.1002/anie.200803682

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Chemical Equation Presented) Dynamic Duo: A Lewis basic bidentate phosphine oxide was effective for activating and modulating the properties of Brønsted basic lanthanum aryl oxides. The Lewis base 1/lanthanum aryl oxide system was suitable for anti-selective Mannich-type reactions of trichloromethyl ketones (see scheme), affording unique building blocks for azetidine-2-carboxylic acids as well as β-amino acids. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：9125 / 9129

页数：5

共 25 条

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