Rhodium-Catalyzed Intermolecular <i>trans</i>
-Disilylation of Alkynones with Unactivated Disilanes
作者:Tao He、Li-Chuan Liu、Le Guo、Bin Li、Qing-Wei Zhang、Wei He
DOI:10.1002/anie.201804223
日期:2018.8.20
of alkynes could provide rapid entry to synthetically useful 1,2‐bissilyl‐alkenes, but is currently limited to activated disilanes reacting in an intramolecular fashion. Reported herein is an efficient rhodium(I)‐catalyzed intermolecular disilylation of a wide array of alkynones with unactivated disilanes. Importantly, this reaction produces exclusively trans‐disilylation products, selectivity that
Synthesis of an [(NHC)<sub>2</sub>Pd(SiMe<sub>3</sub>)<sub>2</sub>] Complex and Catalytic<i>cis</i>-Bis(silyl)ations of Alkynes with Unactivated Disilanes
作者:Melvyn B. Ansell、Debbie E. Roberts、F. Geoffrey N. Cloke、Oscar Navarro、John Spencer
DOI:10.1002/anie.201501764
日期:2015.5.4
The novel complex cis‐[(ITMe)2Pd(SiMe3)2 (ITMe=1,3,4,5‐tetramethylimidazol‐2‐ylidene) has been synthesized by mild oxidative cleavage of Me3SiSiMe3 using [(ITMe)2Pd0]. The use of this complex as precatalyst for the cis‐bis(silyl)ation of alkynes using unactivateddisilanes is reported.