Synthesis of an [(NHC)(2)Pd(SiMe3)(2)] Complex and Catalytic cis-Bis(silyl)ations of Alkynes with Unactivated Disilanes

摘要

The novel complex cis-[(ITMe)(2)Pd(SiMe3)(2) (ITMe=1,3,4,5-tetramethylimidazol-2-ylidene) has been synthesized by mild oxidative cleavage of Me3SiSiMe3 using [(ITMe)(2)Pd-0]. The use of this complex as precatalyst for the cis-bis(silyl)ation of alkynes using unactivated disilanes is reported.