Efficient intramolecular asymmetric reductions of α-, β-, and γ-keto acids with diisopinocampheylborane

被引:34
作者
Ramachandran, PV [1 ]
Brown, HC [1 ]
Pitre, S [1 ]
机构
[1] Purdue Univ, Herbert C Brown Ctr Borane Res, W Lafayette, IN 47907 USA
关键词
D O I
10.1021/ol0062291
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
[GRAPHICS] alpha-, beta-, and gamma -Keto acids are reduced with diisopinocampheylborane at room temperature to the corresponding hydroxy acids with predictable stereochemistry in very high ee. The gamma -hydroxy acids produced were conveniently cyclized to the corresponding lactones, This provides a simple synthesis of 4-hexanolide, a component of the pheromone secreted by the female dermestid beetle Trogoderma glabrum.
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页码:17 / 18
页数:2
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