A facile access to a novel NHC-stabilized silyliumylidene ion and C-H activation of phenylacetylene

作者：Ahmad Syed Usman; Szilvasi Tibor; Inoue Shigeyoshi^*

来源：Chemical communications, 2014, 50(84): 12619-12622.

DOI：10.1039/c4cc05181e

Taking advantage of two N-heterocyclic carbenes (NHCs), novel silyliumylidene ions 1a and 1b are prepared by a facile one-pot reaction of the corresponding dichlorosilanes with three equivalents of NHCs. For the first time, a C-H insertion reaction of phenylacetylene by a novel silyliumylidene ion is reported. The treatment of m-terphenyl substituted silyliumylidene ion 1a with three equivalents of phenylacetylene results in the formation of m-terphenyl substituted 1-alkenyl-1,1-dialkynylsilane 2.

• 出版日期2014