title: Enantioselective amine-catalyzed [4+2] annulations of allenoates and oxo-dienes: an asymmetric synthesis of dihydropyrans.
authors: Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road No. 130, Shanghai, 200237, China.
authors: Xiaojun
authors: X
authors: Wang
authors: Tong
authors: T
authors: Fang
authors: Xiaofeng
authors: X
authors: Tong