1: dicyclo-hexylphosphine With cesium hydroxide monohydrate in N,N-dimethyl-formamide T=20°C; 1 h; Molecular sieveInert atmosphere; 2: ethylene dibromide in N,N-dimethyl-formamide T=20°C; 49 h; Inert atmosphereMolecular sieve;

trichlorosilane in xylene T=155°C; 18 h;

in tetrahydrofuran

in dichloromethane (N2); addn. of CH2Cl2 soln. of palladium compd. to CH2Cl2 soln. of phosphine deriv., stirring at room temp. for 4 h; evapn., washing with pentane, drying in vac. for 1 d;

in benzene mixt. stirred for 2 h; addn. of pentane, solid filtered off, washed with pentane, and dried under vac.; elem. anal.;

in tetrahydrofuran Kinetics; complete thermolysis of cis-{bis(dicyclohexylphophino)ethane}hydridoneopentylplatinum(II) in THF contg. bis(dicyclohexylphosphino)ethane;