3.gPdCl2+4g anhydrous LiCl in 150ml of methanol was heated at 60℃ until the red-brown solid had dissolved (15min).A solution of 13.1g of triphenylphosphine in 25ml of warm (50℃)THF was added in one portion. the mixture was stirred at about 50℃ until the brown colour had disappeared completely(about 1 to 2 hour).the yellow suspension was cooled to room temperature and then filtered on sintered glass . the solid was washed twice with 30ml potions of methanol and once with dry ether. after drying in vacuo,the product was obtained in 90-95% yield.
