New tetraphosphorus ligands for Highly linear selective hydroformylation of allyl and vinyl derivatives

C Cai, S Yu, B Cao, X Zhang

Index: Cai, Chaoxian; Yu, Shichao; Cao, Bonan; Zhang, Xumu Chemistry - A European Journal, 2012 , vol. 18, # 32 p. 9992 - 9998

Full Text: HTML

Citation Number: 18

Abstract

Abstract New tetraphosphorus ligands have been developed and applied in the rhodium- catalyzed regioselective hydroformylation of a variety of functionalized allyl and vinyl derivatives. Remarkably high linear selectivity was obtained by these tetraphosphorus ligands. The ligand that bears strong electron-withdrawing 2, 4-difluorophenyl groups is the most effective one in affording linear aldehydes. The Rh/tetraphosphorus ligand catalyst is ...