title: Silver(I)-catalyzed ring-contractive rearrangement: a new entry to 5-alkylidene-2-cyclopentenones.
abstract: A novel silver(I)-catalyzed ring-contractive rearrangement of 5-substituted 6-diazo-2-cyclohexenones has been developed, providing a new and efficient access to 5-alkylidene-2-cyclopentenones. The AgOTf-catalyzed reaction proceeds through metal-carbenoid formation followed by endocyclic allyl [1,2] migration with excellent stereoselectivity and broad substrate scope.
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, Lanzhou University , Lanzhou 730000, China.
authors.forename: Liang
authors.initials: L
authors.lastname: Zhao
authors.forename: Jinlian
authors.initials: J
authors.lastname: Wang
authors.forename: Hongyan
authors.initials: H
authors.lastname: Zheng
authors.forename: Yun
authors.initials: Y
authors.lastname: Li
authors.forename: Ke
authors.initials: K
authors.lastname: Yang
authors.forename: Bin
authors.initials: B
authors.lastname: Cheng
authors.forename: Xiaojie
authors.initials: X
authors.lastname: Jin
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Yao
authors.forename: Hongbin
authors.initials: H
authors.lastname: Zhai