A sterically modified (salen)chromium(III) complex - An efficient catalyst for high-pressure asymmetric allylation of aldehydes

被引：18

作者：

Kwiatkowski, P

Chaladaj, W

Jurczak, J

机构：

[1] Polish Acad Sci, Inst Organ Chem, PL-01224 Warsaw, Poland

[2] Univ Warsaw, Dept Chem, PL-02093 Warsaw, Poland

来源：

SYNLETT | 2005年 / 15期

关键词：

aldehydes; allylstannane; asymmetric catalysis; high-pressure technique; homoallylic alcohols; salen(chromium) complexes;

D O I：

10.1055/s-2005-872662

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A novel (salen)chromium(III) catalyst with a modified salen ligand was synthesised in a simple way starting from readily available precursors. High-pressure allylation reaction of aromatic and aliphatic aldehydes with allyltributyltin upon application of I mol% of a modified (salen)chromium(III) complex provides homoallylic alcohols in good yield and with high enantioselectivity (up to 92%). The catalyst reveals higher enantioselectivity than the classic Jacobsen's complex.

引用

页码：2301 / 2304

页数：4

共 39 条

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