Highly enantioselective construction of carbazole derivatives via [4+2] cycloaddition of silyloxyvinylindoles and β, γ-unsaturated α-ketoesters. Issue 70 (10th August 2016)

• Record Type: Journal Article
• Authors: Zhao, Xiaohu; Mei, Hongjiang; Xiong, Qian; Fu, Kai; Lin, Lili; Liu, Xiaohua; Feng, Xiaoming
• Is Part Of: Chemical communications. Volume 52:Issue 70(2016)
• Page Start: 10692
• Page End: 10695
• Publication Date: 2016-08-10
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c6cc05328a
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : A highly enantioselective [4+2] cycloaddition between silyloxyvinylindoles and β, γ-unsaturated α-ketoesters was realized by an avaliable chiral N, N ′-dioxide/yttrium triflate complex. Abstract : A highly efficient catalytic asymmetric [4+2] cycloaddition of silyloxyvinylindoles with β, γ-unsaturated α-ketoesters has been accomplished by an available chiral N, N ′-dioxide/yttrium triflate complex. A widespread range of carbazole derivatives were obtained in 47–98% yield with 86–99% ee under mild reaction conditions.