Enantio- and diastereoselective [3+2] cycloadditions of azomethine ylides with Ag(I)-phosphinooxazoline catalysts

被引：99
|
作者：
Stohler, R [1 ]
Wahl, F [1 ]
Pfaltz, A [1 ]
机构：
[1] Univ Basel, Dept Chem, CH-4056 Basel, Switzerland
来源：
SYNTHESIS-STUTTGART | 2005年 / 09期
关键词：
asymmetric catalysis; Ag(I) complexes; 3+2] cycloaddition; azomethine ylides; phosphinooxazolines;
D O I：
10.1055/s-2005-865313
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Chiral Ag(I)-phosphinooxazoline (PHOX) complexes are efficient catalysts for [3+2] cycloadditions of azomethine ylides with alpha,beta-unsaturated carboxylic esters. In intramolecular cycloadditions, virtually complete diastereocontrol and enantiomeric excesses of up to 99% have been observed.
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页码：1431 / 1436
页数：6
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