title: Rhodium(III)-catalyzed selective ortho-olefinations of N-acyl and N-aroyl sulfoximines by C-H bond activation.
abstract: Two new rhodium-catalyzed oxidative couplings between sulfoximine derivatives and alkenes by regioselective CH activation, affording ortho-olefinated (Heck-type) products, are reported. A synthetic application of the ortho-alkenylated products into the corresponding cyclic derivatives has been demonstrated, and a mechanistic rational for the rhodium catalysis is presented.
authors.affiliation: Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52056 Aachen (Germany), Fax: (+49) 241-8092-391.
authors.forename: Kanniyappan
authors.initials: K
authors.lastname: Parthasarathy
authors.forename: Carsten
authors.initials: C
authors.lastname: Bolm
keywords: CH bond activation; alkenes; olefination; ortho-alkenylation; rhodium catalysis