title: Organocatalytic asymmetric sulfa-michael/michael addition reactions: a strategy for the synthesis of highly substituted chromans with a quaternary stereocenter.
authors.affiliation: Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China.
authors.forename: Xu-Fan
authors.initials: XF
authors.lastname: Wang
authors.forename: Qiu-Lin
authors.initials: QL
authors.lastname: Hua
authors.forename: Ying
authors.initials: Y
authors.lastname: Cheng
authors.forename: Xiao-Lei
authors.initials: XL
authors.lastname: An
authors.forename: Qing-Qing
authors.initials: QQ
authors.lastname: Yang
authors.forename: Jia-Rong
authors.initials: JR
authors.lastname: Chen
authors.forename: Wen-Jing
authors.initials: WJ
authors.lastname: Xiao