MONOTERPENE ALKALOIDS .3. STEREOSPECIFIC SYNTHESIS OF (+/-)-7,7A-EPITECOMANINE

被引:2
|
作者
ALAZARD, JP
LEBOFF, A
THAL, C
机构
关键词
D O I
10.1016/S0040-4020(01)96207-6
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The presence of a borane axial group in compound 14 induces a regio and stereospecific O-1(2) cycloaddition at low temperature. This selectivity together with that obtained during the lithium liquid ammonia reduction of the 4a-beta-hydroxyenone 6, allows a short and stereospecific synthesis of the (+/-) epi-7,7a tecomanine 5, an unnatural and undescribed isomer of the tecomanine 1.
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页码:9195 / 9206
页数:12
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