The synthesis of [Rh2(COD)2(dppm)(μ2-Cl)]BF4 (1) (COD ) 1,5-cyclooctadiene, dppm = bis-(diphenylphosphino)methane) from simple precursors is reported. This is a rare example of a dirhodium complex with an open [Rh2(μ2-dppm)(μ2-Cl)] core. The complex has been used to affect the hydrogenation of styrene and benzo[b]thiophene with total selectivity and competitive rates of reaction. The recycling of the catalyst has been achieved by the entrapment of 1 in silica by a sol-gel method to produce a recyclable solid catalyst.
[Rh2(COD)2(Dppm)(µ-2-Cl)]BF4: Precursor for a Selective Hydrogenation Catalyst and Its Recycling by Silica Entrapment
MARCHETTI, FABIO;
2006-01-01
Abstract
The synthesis of [Rh2(COD)2(dppm)(μ2-Cl)]BF4 (1) (COD ) 1,5-cyclooctadiene, dppm = bis-(diphenylphosphino)methane) from simple precursors is reported. This is a rare example of a dirhodium complex with an open [Rh2(μ2-dppm)(μ2-Cl)] core. The complex has been used to affect the hydrogenation of styrene and benzo[b]thiophene with total selectivity and competitive rates of reaction. The recycling of the catalyst has been achieved by the entrapment of 1 in silica by a sol-gel method to produce a recyclable solid catalyst.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
