Coupling Allylation of Dialkylselenaethenylboranes to give1,1- and(Z )-1,2-Dialkylselenapenta-1,4-dienes†

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De Yu Yang, Xian Huang and Yi Zhang


Abstract

A new method for the formation of 1,1- and(Z )-1,2-dialkylselenapenta-1,4-dienes by couplingallylation of dialkylselenaethenylboranes with allyl bromide inthe presence of NaOMe and CuBr·SMe2 isdescribed; the reaction via the migration of analkylselenyl group from one olefinic carbon to another.


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