title: Tandem cyclopropane ring-opening/Conia-ene reactions of 2-alkynyl indoles: a [3 + 3] annulative route to tetrahydrocarbazoles.
abstract: A Zn(NTf(2))(2) catalyzed tandem reaction consisting of a nucelophilic ring opening of 1,1-cyclopropanediesters by 2-alkynyl indoles followed by a Conia-ene ring closure results in the efficient one-step synthesis of tetrahydrocarbazoles. The adducts may be further elaborated to carbazoles.
authors.affiliation: Department of Chemistry, The University of Western Ontario, London, Ontario, Canada N6A 5B7.
authors.forename: Huck K
authors.initials: HK
authors.lastname: Grover
authors.forename: Terry P
authors.initials: TP
authors.lastname: Lebold
authors.forename: Michael A
authors.initials: MA
authors.lastname: Kerr