Stereospecific preparation of symmetrical (1Z, 3Z)-and (1E, 3E)-2, 3-difluoro-1, 4-disubstituted-buta-1, 3-dienes from 1-bromo-1-fluoroalkenes
J Xu, DJ Burton
Index: Xu, Jianjun; Burton, Donald J. Journal of Organic Chemistry, 2006 , vol. 71, # 10 p. 3743 - 3747
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Citation Number: 7
Abstract
A straightforward method to prepare symmetrical (1Z, 3Z)-and (1E, 3E)-2, 3-difluoro-1, 4- disubstituted-buta-1, 3-dienes is described. High E/Z ratio 1-bromo-1-fluoroalkenes, prepared by isomerization from the E/Z≈ 1: 1 isomeric mixtures, reacted with Bu3SnSnBu3
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