in tetrahydrofuran byproducts: NaCl; under Ar, to stirred soln. of Cp2TiCl2 in THF added portionwise within 1 h suspn. of NaSC6H4NH2 in THF, stirred at room temp. for 2 h; filtered, concd. in vac., pentane added, allowed to stand at room temp.for 20 h, filtered, concd., ppt. sepd., washed with toluene, dried in vac.; elem. anal.;