Synthesis of new chiral monodentate aminophosphinites and their use in catalytic asymmetric hydrogenations

被引：46
|
作者：
Junge, K
Oehme, G
Monsees, A
Riermeier, T
Dingerdissen, U
Beller, M
机构：
[1] Leibniz Inst Organ Katalyse, D-18055 Rostock, Germany
[2] Degussa AG, Projecthouse Catalysis, D-65296 Frankfurt, Germany
来源：
JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2003年 / 675卷 / 1-2期
关键词：
chiral aminophosphinites; enantioselectivities; toluene;
D O I：
10.1016/S0022-328X(03)00223-7
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A general synthesis of chiral 4-amino-4,5-dihydro-3H-dinaphthophosphepines 5a-f is described. The resulting monodentate chiral aminophosphinites have been tested in the rhodium-catalyzed asymmetric hydrogenation of methyl alpha-acetamidocinnamate and methyl alpha-acetamidoacrylate. Enantioselectivities up to 96% ee were obtained in the presence of 5a and sodium dodecylsulfonate in toluene. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：91 / 96
页数：6
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