KOH in methanol; diethyl ether methanolic soln. of acacH (1.284 mmol) and KOH (0.856 mmol) added dropwise to suspn. of Pt compd. (0.428 mmol) in Et2O at room temp., stirred, stored for 1 d; evapd., washed (Et2O), extd. (CHCl3), filtered, pptd. (Et2O), elem. anal;