Wide bite angle diphosphine rhodium complexes: Synthesis, structure, and catalytic 1, 4-addition of arylboronic acids to enones

BP Morgan, RC Smith

Index: Morgan, Brad P.; Smith, Rhett C. Journal of Organometallic Chemistry, 2008 , vol. 693, # 1 p. 11 - 16

Full Text: HTML

Citation Number: 2

Abstract

A rhodium complex [ClRh (CO)(L1)] featuring a wide bite angle diphosphine ligand (L1= 1, 3- bis (2-diphenylphosphinomethylphenyl) benzene) has been synthesized and structurally characterized. L1 supports a bite angle (P–M–P angle, β) of 171.4° in the trans-square planar complex. L1 was tested in Rh-catalyzed 1, 4-addition reactions of arylboronic acids (six examples) to α, β-unsaturated ketones (five examples). In mixed aqueous/ ...