title: Copper(I)-Catalyzed Heterocyclization of α-Acyl-α-alkynyl Ketene Dithioacetals: Synthesis of 3-Cyanofurans.
abstract: A new method for the synthesis of 3-cyanofurans via Cu(I)-catalyzed heterocyclization of α-acyl-α-alkynyl ketene dithioacetals in the presence of ammonium acetate has been developed. The procedure generates the cyano moiety in situ with ammonium acetate as the nitrogen source. Based upon experimental observations, a plausible reaction mechanism is proposed.
authors.affiliation: Department of Chemistry, Northeast Normal University , Changchun 130024, P. R. China.
authors.forename: Lianjie
authors.initials: L
authors.lastname: Wang
authors.affiliation: Department of Chemistry, Northeast Normal University , Changchun 130024, P. R. China.
authors.forename: Xiaocui
authors.initials: X
authors.lastname: Liu
authors.affiliation: Department of Chemistry, Northeast Normal University , Changchun 130024, P. R. China.
authors.forename: Mang
authors.initials: M
authors.lastname: Wang
authors.affiliation: Department of Chemistry, Northeast Normal University , Changchun 130024, P. R. China.
authors.forename: Jun
authors.initials: J
authors.lastname: Liu