Preparation of Dihydroborole Derivatives by a Simple 1,1-Carboboration Route

作者：Feldmann Andreas; Iida Azusa; Froehlich Roland; Yamaguchi Shigehiro; Kehr Gerald; Erker Gerhard^*

来源：Organometallics, 2012, 31(6): 2445-2451.

DOI：10.1021/om300065m

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.

• 出版日期2012-3-26