Studies on wittig reaction V:Stereochemistry of reaction of benzylidene alkyl diphenyl phosphorane with substituted aromatic aldehydes

Chin. J. Org. Chem. ›› 1987, Vol. 7 ›› Issue (6): 466-468. Previous Articles Next Articles

WITTIG反应的研究V:亚苄基烷基二苯基膦与取代芳醛的反应

黄文芳;卢泽楷;张景龄

华中师范大学有机合成研究所

发布日期:1987-12-25

Studies on wittig reaction V:Stereochemistry of reaction of benzylidene alkyl diphenyl phosphorane with substituted aromatic aldehydes

HUANG WENFANG;LU ZEKAI;ZHANG JINGLING

Published:1987-12-25

Abstract

The stereochem. of the Wittig reaction of benzylidenealkyldiphenylphosphoranes with substituted benzaldehydes was studied. Experimental results showed that the products alkenes were mainly of the E-type, and the E-selectivity was dependent upon the ylide structures, reaction conditions and the polarity of the substituents of the aromatic aldehydes. The logarithms of the E/Z ratio were found to have a linear relationship with the const of the substituents (s).

Key words: BENZALDEHYDE P, WITTIG REACTION, BENZYL GROUP, STEREOCHEMISTRY, DIPHENYLPHOSPHINE, DIPHENYLETHYLENE P

CLC Number:

O627

Cite this article

HUANG WENFANG;LU ZEKAI;ZHANG JINGLING. Studies on wittig reaction V:Stereochemistry of reaction of benzylidene alkyl diphenyl phosphorane with substituted aromatic aldehydes[J]. Chin. J. Org. Chem., 1987, 7(6): 466-468.

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WITTIG反应的研究V:亚苄基烷基二苯基膦与取代芳醛的反应

Studies on wittig reaction V:Stereochemistry of reaction of benzylidene alkyl diphenyl phosphorane with substituted aromatic aldehydes

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