in toluene (N2); Schlenk technique; soln. of ligand (1 equiv.) in toluene was addeddropwise to stirred suspn. of Pd complex (1 equiv.) in toluene; mixt. w as stirred at room temp. for 12 h; filtered; washed (Et2O); dried (vac.); crystd. (CH2Cl2/petroleum ether);elem. anal.;