6-tetramethylpiperidino)zincate (R2Zn(TMP)Li) through deprotonative zincation as a key reaction. In this system, by choosing appropriate ligands for the zincate, either regioselective zincation of functionalized haloaromatics or the generation of substituted benzynes can be controlled in good yields with excellent chemoselectivity, using the same substrate. Zincation with (t)Bu2Zn(TMP)Li followed by electrophilic
Suzuki-type cross coupling between aryl halides and silylboranes for the syntheses of aryl silanes
作者:Huifang Guo、Xiao Chen、Chunliang Zhao、Wei He
DOI:10.1039/c5cc07071f
日期:——
Herein we report Pd catalyzed Suzuki type cross coupling between aryl halides and silylboranes for the syntheses of aryl silanes. This reaction shows a general substrate scope, excellent compatibility with...
Nucleophilic substitution reactions of chlorosilanes with aryl Grignard reagents take place efficiently in the presence of copper(I) iodide to afford tetraorganosilanes.
氯硅烷与芳基格氏试剂的亲核取代反应在碘化铜(I)存在下高效进行,生成四有机硅。
Silver-Catalyzed Transmetalation between Chlorosilanes and Aryl and Alkenyl Grignard Reagents for the Synthesis of Tetraorganosilanes
Zinc-Catalyzed Nucleophilic Substitution Reaction of Chlorosilanes with Organomagnesium Reagents
作者:Kei Murakami、Hideki Yorimitsu、Koichiro Oshima
DOI:10.1021/jo802433t
日期:2009.2.6
Zinc-catalyzed nucleophilic substitutionreactions of chlorosilanes with organomagnesiumreagents afford various tetraorganosilanes under mild reaction conditions. The reactions can be performed on large scale and allow efficient preparation of functionalized tetraorganosilanes.