High-branched selectivity in the palladium-catalysed alkoxycarbonylation of styrene in the presence of thiol–thioether atropisomeric ligands
摘要:
New mononuclear and dinuclear palladium complexes containing one neutral and one anionic sulfur donor centre derived from the atropisomeric thiol-thioether derivative 3 (RHbinas) were prepared and characterized both in solution and in the solid state. Crystal structures of [PdCl(Mebinas)](2) (4) and [PdCl(Mebinas)(PPh3)] (6) were determined by X-ray diffraction. In the presence of triphenylphosphine and oxalic acid, the new complexes are active catalysts for the hydrocarboxylation of styrene, showing a high regioselectivity towards the branched product under mild conditions (up to 97% of 2-phenylpropanoic acid). (C) 1999 Elsevier Science B.V. All rights reserved.
DI, FURIA F.;LICINI, G.;MODENA, G.;VALLE, G., BULL. SOC. CHIM. FR.,(1990) N, C. 734-744
作者:DI, FURIA F.、LICINI, G.、MODENA, G.、VALLE, G.
DOI:——
日期:——
Furia, F. di; Licini, G.; Modena, G., Bulletin de la Societe Chimique de France, 1990, # 6, p. 734 - 744
作者:Furia, F. di、Licini, G.、Modena, G.、Valle, G.
DOI:——
日期:——
High-branched selectivity in the palladium-catalysed alkoxycarbonylation of styrene in the presence of thiol–thioether atropisomeric ligands
作者:Nuria Ruiz、Inmaculada del Rı́o、José Luis Jiménez、Carmen Claver、Jorge Forniés-Cámer、Christine C.J. Cardin、Serafino Gladiali
DOI:10.1016/s1381-1169(98)00383-5
日期:1999.7
New mononuclear and dinuclear palladium complexes containing one neutral and one anionic sulfur donor centre derived from the atropisomeric thiol-thioether derivative 3 (RHbinas) were prepared and characterized both in solution and in the solid state. Crystal structures of [PdCl(Mebinas)](2) (4) and [PdCl(Mebinas)(PPh3)] (6) were determined by X-ray diffraction. In the presence of triphenylphosphine and oxalic acid, the new complexes are active catalysts for the hydrocarboxylation of styrene, showing a high regioselectivity towards the branched product under mild conditions (up to 97% of 2-phenylpropanoic acid). (C) 1999 Elsevier Science B.V. All rights reserved.