in tetrahydrofuran byproducts: AgCl; (PtCl(allyl))4 and P(C6H11)3 in THF was heated for a few min, AgPF6 wasadded and stirred for a few min; the suspn. filtered, the soln. concd., Et2O was added, the crystals filtered off, washed with toluene, Et2O and dried in vac.;