title: Synthesis and insertion reactions of the cyclometalated palladium-alkyl complexes Pd(CH(2)CMe(2)-o-C(6)H(4))L(2). Observation of a pentacoordinated intermediate in the insertion of SO(2).
abstract: Palladacycles of the type 2, have been synthesized by treatment of the corresponding chloroalkylcomplexes Pd(CH(2)CMe(2)C(6)H(5))ClL(2) (L(2) = (PMe(3))(2), 2a, or 1,5-cyclooctadiene (cod), 2b) with suitable bases, or by simple ligand exchange reactions from the cyclooctadiene derivative 2b. The metallacycles 2 react with activated alkynes and with sulfur dioxide, giving rise to different insertion products.
authors.affiliation: Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università di Parma, Centro di Studio per la Strutturistica Diffrattometrica del CNR, Viale delle Scienze, I-43100 Parma, Italy.
authors.forename: J
authors.initials: J
authors.lastname: Cámpora
authors.forename: J A
authors.initials: JA
authors.lastname: López
authors.forename: P
authors.initials: P
authors.lastname: Palma
authors.forename: D
authors.initials: D
authors.lastname: del Rio
authors.forename: E
authors.initials: E
authors.lastname: Carmona
authors.forename: P
authors.initials: P
authors.lastname: Valerga
authors.forename: C
authors.initials: C
authors.lastname: Graiff
authors.forename: A
authors.initials: A
authors.lastname: Tiripicchio