in dichloromethane React. of Mo-complex (CH2Cl2) with 2 equiv of org. compd. (25°C, 6 h).; Removal of solvent, unreacted phosphine and pip (vac.); redissoln. of resulting oil (C6H6), passing of soln. through Al2O3 column. Upon removal of solvent, a viscous oil is obtained, which did not crystallize from various solvents.;

in dichloromethane React. of Mo-complex (CH2Cl2) with 2 equiv of org. compd. (25°C, 6 h).; Removal of solvent, unreacted phosphine and pip (vac.), redissoln. of resulting oil (C6H6), passing of soln. through alumina column. Upon removal of solvent a viscous oil is obtained, which did not crystallize from various solvents.;