Modified chiral triazolium salts for enantioselective benzoin cyclization of enolizable keto-aldehydes: Synthesis of (+)-sappanone B

被引：112

作者：

Takikawa, Hiroshi ^{[1
]}

Suzuki, Keisuke ^{[1
]}

机构：

[1] Tokyo Inst Technol, SORST JST Agcy, Dept Chem, Meguro Ku, Tokyo 1528551, Japan

来源：

ORGANIC LETTERS | 2007年 / 9卷 / 14期

关键词：

D O I：

10.1021/ol070929p

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Asymmetric synthesis of (+)-sappanone B (1), a natural product with a 3-hydroxy chromanone structure, was achieved via enantioselective benzoin cyclization by using a modified Rovis catalyst and triethylamine. This catalyst enabled the successful benzoin cyclization of readily enolizable keto-aldehydes.

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页码：2713 / 2716

页数：4

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