title: "One-pot" access to 4H-chromenes with formation of a chiral quaternary stereogenic center by a highly enantioselective iminium-allenamine involved oxa-Michael-aldol cascade.
authors.affiliation: Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Biochemistry and Molecular Biology, Lanzhou University, Lanzhou 730000, China.
authors.forename: Chunliang
authors.initials: C
authors.lastname: Liu
authors.forename: Xinshuai
authors.initials: X
authors.lastname: Zhang
authors.forename: Rui
authors.initials: R
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Wang