Catalytic Asymmetric C–H Insertions of Rhodium(II) Azavinyl Carbenes
摘要:
A highly efficient enantioselective C-H insertion of azavinyl carbenes into unactivated alkanes has been developed. These transition metal carbenes are directly generated from readily available and stable 1-sulfonyl-1,2,3-triazoles in the presence of chiral Rh(II) carboxylates and are used for C-H functionalization of alkanes to access a variety of beta-chiral sulfonamides.
Catalytic Asymmetric C–H Insertions of Rhodium(II) Azavinyl Carbenes
作者:Stepan Chuprakov、Jamal A. Malik、Mikhail Zibinsky、Valery V. Fokin
DOI:10.1021/ja202969z
日期:2011.7.13
A highly efficient enantioselective C-H insertion of azavinyl carbenes into unactivated alkanes has been developed. These transition metal carbenes are directly generated from readily available and stable 1-sulfonyl-1,2,3-triazoles in the presence of chiral Rh(II) carboxylates and are used for C-H functionalization of alkanes to access a variety of beta-chiral sulfonamides.