title: Copper-catalyzed cascade transformation of O-propargylic oximes with sulfonyl azides to α,β-unsaturated N-acylamidines.
abstract: Copper-catalyzed cascade transformations of O-propargylic oximes and sulfonyl azides were carried out to efficiently afford α,β-unsaturated N-acylamidines. The reaction involved the intramolecular attack of the oxime group to the ketenimine moiety that was generated in situ, followed by the cleavage of the N-O bond.
authors.affiliation: Department of Chemistry, Graduate School of Science, Tohoku University , Sendai 980-8578, Japan.
authors.forename: Dong
authors.initials: D
authors.lastname: Zhang
authors.forename: Itaru
authors.initials: I
authors.lastname: Nakamura
authors.forename: Masahiro
authors.initials: M
authors.lastname: Terada