Alkenes, alkynes, 1,2- and 1,3-dienes react with [MR(N-N)(MeCN)](+) (M = Pt or Pd; R = hydrocarbyl group; N-N = bidentate nitrogen ligand) to give R-substituted derivatives. The organic fragment is generally retained within the metal environment in eta(1) or eta(3) coordination, except in the reaction of alkenes with Pd(II) complexes. In this case, a free R-substituted alkene is produced via a relatively fast beta-elimination process from a Pd-alkyl intermediate. Different regiochemistries are detected in the reaction between monosubstituted olefins (propene or styrene) and homologous Pt and Pd complexes. The Pt-C bond is always formed with the terminal unsubstituted alkene carbon, while a preference toward the internal carbon, particularly if phenyl-substituted, is observed with Pd species. Neutral [MCIR(N-N)] are markedly less reactive. In this case, when M = Pt, the unsaturated organic substrate generally adds to the metal affording fairly stable tbp five-coordinate complexes.

Cationic platinum(II) - or palladium(II)-carbyl complexes and unsaturated substrates: a facile way to C-C bond formation / Vicenzo De, Felice; Cucciolito, MARIA ELENA; Augusto De, Renzi; Ruffo, Francesco; Tesauro, Diego. - In: JOURNAL OF ORGANOMETALLIC CHEMISTRY. - ISSN 0022-328X. - STAMPA. - 493:1-2(1995), pp. 1-11. [10.1016/0022-328X(94)05294-L]

Cationic platinum(II) - or palladium(II)-carbyl complexes and unsaturated substrates: a facile way to C-C bond formation

CUCCIOLITO, MARIA ELENA;RUFFO, FRANCESCO;TESAURO, DIEGO
1995

Abstract

Alkenes, alkynes, 1,2- and 1,3-dienes react with [MR(N-N)(MeCN)](+) (M = Pt or Pd; R = hydrocarbyl group; N-N = bidentate nitrogen ligand) to give R-substituted derivatives. The organic fragment is generally retained within the metal environment in eta(1) or eta(3) coordination, except in the reaction of alkenes with Pd(II) complexes. In this case, a free R-substituted alkene is produced via a relatively fast beta-elimination process from a Pd-alkyl intermediate. Different regiochemistries are detected in the reaction between monosubstituted olefins (propene or styrene) and homologous Pt and Pd complexes. The Pt-C bond is always formed with the terminal unsubstituted alkene carbon, while a preference toward the internal carbon, particularly if phenyl-substituted, is observed with Pd species. Neutral [MCIR(N-N)] are markedly less reactive. In this case, when M = Pt, the unsaturated organic substrate generally adds to the metal affording fairly stable tbp five-coordinate complexes.
1995
Cationic platinum(II) - or palladium(II)-carbyl complexes and unsaturated substrates: a facile way to C-C bond formation / Vicenzo De, Felice; Cucciolito, MARIA ELENA; Augusto De, Renzi; Ruffo, Francesco; Tesauro, Diego. - In: JOURNAL OF ORGANOMETALLIC CHEMISTRY. - ISSN 0022-328X. - STAMPA. - 493:1-2(1995), pp. 1-11. [10.1016/0022-328X(94)05294-L]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/458753
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