Preparation of transition metal complexes of chiral derivatives of acetoacetic acid. Tetraalkylammonium tetrachlorometallates as an organic source of metals

Article abstract of DOI:10.1016/0277-5387(95)00066-2

Bis(benzyltrimethylammonium) tetrachlorocuprate, tetrachlorocobaltate and hexachlorodifferate react in organic solvents with alkaline salts of CH3COCH2CO-Xc [Xc-H=(d)-methanol, (4S)-4-benzyl-2-oxazolidinone and (2R)-borane-10,2-sultam] to give homochiral