title: Gold(I)-catalyzed diazo coupling: strategy towards alkene formation and tandem benzannulation.
abstract: A gold(I)-catalyzed cross-coupling of diazo compounds to afford tetrasubstituted alkenes has been developed by taking advantage of a trivial electronic difference between two diazo substrates. A N-heterocyclic-carbene-derived gold complex is the most effective catalyst for this transformation. Based on this new strategy, a gold(I)-initiated benzannulation has been achieved through a tandem reaction involving a diazo cross-coupling, 6π electrocyclization, and oxidative aromatization.
authors.affiliation: School of Pharmaceutical Engineering & Life Science, Changzhou University, 1 Gehu Road, Changzhou 213164 (China).
authors.forename: Daming
authors.initials: D
authors.lastname: Zhang
authors.forename: Guangyang
authors.initials: G
authors.lastname: Xu
authors.forename: Dong
authors.initials: D
authors.lastname: Ding
authors.forename: Chenghao
authors.initials: C
authors.lastname: Zhu
authors.forename: Jian
authors.initials: J
authors.lastname: Li
authors.forename: Jiangtao
authors.initials: J
authors.lastname: Sun
keywords: alkenes; annulations; cross-coupling; diazo compounds; gold