title: Highly enantioselective construction of carbazole derivatives via [4+2] cycloaddition of silyloxyvinylindoles and β,γ-unsaturated α-ketoesters.
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.
authors: Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China. xmfeng@scu.edu.cn.
authors: Xiaohu
authors: X
authors: Zhao
authors: Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China. xmfeng@scu.edu.cn.
authors: Hongjiang
authors: H
authors: Mei
authors: Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China. xmfeng@scu.edu.cn.
authors: Qian
authors: Q
authors: Xiong
authors: Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China. xmfeng@scu.edu.cn.
authors: Kai
authors: K
authors: Fu
authors: Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China. xmfeng@scu.edu.cn.
authors: Lili
authors: L
authors: Lin
authors: Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China. xmfeng@scu.edu.cn.
authors: Xiaohua
authors: X
authors: Liu
authors: Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China. xmfeng@scu.edu.cn.
authors: Xiaoming
authors: X
authors: Feng