title: Ambient intermolecular [2 + 2] cycloaddition: an example of carbophilicity and oxophilicity competition in Au/Ag catalysis.
abstract: The gold-catalyzed intermolecular [2 + 2] cycloaddition of propargyl esters was achieved with good stereoselectivity. The "silver-free" condition was critical for this transformation, while only a trace amount of [2 + 2] products were formed in the presence of silver under otherwise identical conditions.
authors.affiliation: C. Eugene Bennett Department of Chemistry, West Virginia University , Morgantown, West Virginia 26506, United States.
authors.forename: Yijin
authors.initials: Y
authors.lastname: Su
authors.forename: Yanwei
authors.initials: Y
authors.lastname: Zhang
authors.forename: Novruz G
authors.initials: NG
authors.lastname: Akhmedov
authors.forename: Jeffrey L
authors.initials: JL
authors.lastname: Petersen
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Shi