On the Regioselectivity Control in the Palladium??Catalyzed Hydro??alkoxycarbonylation of α, β??Unsaturated Esters

…, SCA Nefkens, C Pisano, F Wenzinger

文献索引：Consiglio, Giambattista; Nefkens, Sylvia C. A.; Pisano, Carmelina; Wenzinger, Fritz Helvetica Chimica Acta, 1991 , vol. 74, # 2 p. 323 - 325

全文：HTML全文

被引用次数: 26

摘要

Abstract The regioselectivity of the hydro-alkoxycarbonylation of methyl acrylate, methacrylate, and crotonate catalyzed by [PdCl 2 L 2] complexes (L= phosphine ligands) can be largely controlled by variation of the ligands. PPh 3, promotes preferential carbonylation at the α-position, whereas with [(2, 2-dimethyl-1, 3-dioxolane-4, 5-diyl) bis- (methylene)] bis [diphenylphosphine] as ligand, the β-position is overwhelmingly ...