sodium methylate in methanol soln. of Pt complex in benzene was added to MeOH soln. of MeONe; stirring for 5 h; evapn., extn. with pentane, evapn.;

sodium tetrahydroborate in ethanol NaBH4 was added to stirred soln. of Pt complex; stirring for 30 min; evapn., extn. with pentane, evapn., recrystn. from hexane; elem. anal.;