The trans-hydroboration of terminal alkynes mediated by borenium cations [NHC(9-BBN)]+ (NHC = N-heterocyclic carbene, 9-BBN = 9-borabicyclo(3.3.1)nonane) exclusively affords Z-vinylboranes. NHCs and chelating dialkyl substituents on the borenium cation and...
由
硼鎓阳离子 [NHC(9-BBN)]+ (NHC = N-杂环卡宾,9-BBN = 9-
硼二环(3.3.1)
壬烷) 介导的末端
炔烃的反式
硼氢化反应专门提供 Z-
乙烯基硼烷。NHCs和
硼鎓阳离子上的螯合二烷基取代基和...