Completely stereoselective synthesis of a chiral quadridentate ligand with As2NP donor atoms. Crystal and molecular structure of [OC-6,35-(R*,S*)]-(±)-dichloro{1-[(2-dimethylarsinophenyl)methylarsino]-2-[(2-aminophenyl)methylphosphino]benzene-As, As′,N,P}cobalt(III) chloride dihydrate
Abstract
Reaction of (±)-(2-aminophenyl)(2-chlorophenyl)methylphosphine with sodium (2-dimethylarsinophenyl)methylarsenide is completely stereoselective giving (R*, S*)-1-[(2-dimethylarsinophenyl)methylarsino]-2-[(2-aminophenyl)methylphosphino]benzene, (R*,S*)-1; as confirmed by a crystal structure determination of cis-[CoCl2{(R*,S*)-1}]Cl·2H2O.