A novel asymmetric benzoin reaction catalyzed by a chiral triazolium salt - Preliminary Communication

被引:199
作者
Enders, D [1 ]
Breuer, K [1 ]
Teles, JH [1 ]
机构
[1] BASF AG,AMMONIAKLAB,D-67056 LUDWIGSHAFEN,GERMANY
关键词
D O I
10.1002/hlca.19960790427
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Using the chiral triazolium salt 1 as catalyst, a novel asymmetric variant of the benzoin reaction is reported. For the first time, the scope of the method is extended to a broader range of aromatic aldehydes 2, affording the acyloins 3a-h in yields of 22-72% and enantiomeric excesses up to 86%.
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页码:1217 / 1221
页数:5
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