Preparation of Dihydroborole Derivatives by a Simple 1,1-Carboboration Route
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2,3-Dihydroboroles are readily formed by treatment of dicyclopropylacetylene with the strongly electrophilic borane B(C6F5)3. The reaction involves a sequence of 1,1-carboboration reactions and proceeds via dienylborane intermediates. Consistent with this, the reaction of the conjugated enyne 15c with B(C6F5)3 leads to the formation of a dihydroborole.
创建时间：
2016-02-21
