title: Tandem reactions to construct heterocycles via phosphine-catalyzed umpolung addition and intramolecular conjugate addition.
abstract: [reaction: see text] A highly efficient method for constructing heterocycles was achieved by phosphine-catalyzed tandem umpolung addition and intramolecular conjugate addition. This strategy offers a simple and promising method for constructing synthetically useful heterocycles under neutral conditions with high atom economy.
authors.affiliation: State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai, 200032, China.
authors.forename: Cheng
authors.initials: C
authors.lastname: Lu
authors.forename: Xiyan
authors.initials: X
authors.lastname: Lu