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Stereoselective synthesis of substituted 2-(diethylphosphonyl)-4-(trimethylsilyl)buta-1,3-dienes
被引:0
|作者:
Chevalier, F
[1
]
Al-Badri, H
[1
]
Collignon, N
[1
]
机构:
[1] Equipe Heterochim Organ, IRCOF, UPRES A 6014 CNRS, F-76131 Mt St Aignan, France
来源:
关键词:
lithiated diethyl 3-(trimethylsilyl)prop-1-enylphosphonate;
aldolization;
dehydration;
phosphorylation-elimination;
2-(diethylphosphonyl)-4-(trimethylsilyl)buta-1,3-dienes;
(E;
E)-stereoselectivity;
D O I:
暂无
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
摘要:
The lithiated derivative of diethyl 3-(tlimethylsilyl)prop-1-enylphosphonate 1 added easily, but with a poor diastereoselectivity, to various aldehydes leading to alcohols 5, whose dehydration under neutral conditions gave the title dienes 7 as stereomeric mixtures. Noticeable improvement in the (E,E)-stereoselective access to the dienes 7 was achieved by using a one-pot procedure, which combined the above aldolization reaction with a phosphorylation-elimination sequence.
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页码:801 / 807
页数:7
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