Addition of methoxide to (diallyl ether) platinum(II) chloride. Absolute configuration of a diastereoisomeric product, and stereochemical implications

An attempt has been made to resolve (diallylether) platinum(II) chloride. The complex was transformed by methoxide addition to a binuclear product containing carbon-platinum σ bonds. After bridge splitting of the binuclear alkyl derivative with (S)-α-methylbenzylamine, fractional crystallization gave two diastereoisomer complexes. Treatment of these with HCl gave optically inactive (diallylether)platinum(II) ch1oride. The molecular structure of one diastereoisomeric product was established by X-ray analysis.