hydrogen in tetrahydrofuran; methanol 3 bar H2, 0-41°C; prepd. as solvent-containing particles;

in tetrahydrofuran under Ar, conventional Schlenk techniques; 10 equiv. of ligand added to soln. of Ru complex in THF; stirred under H2 (1 atm) at room temp. for ca. 3 h; filtered; evapd. to dryness; detd. by (1)H NMR spectroscopy;

PPh3; H2 in tetrahydrofuran byproducts: cyclooctene, cyclooctane; excess phosphine, stirring under 1 atm H2 (room temp., 3 h);

gamma-aminopropyltriethoxysilane; hydrogen in tetrahydrofuran T=25°C; P=2250.23 Torr; 12 h;

in hexane byproducts: 1,3,5-COT, 1,5-COD; placing of Ru(COD)(COT) in Schlenk tube, addn. of hexane under N2 atmosphere, evacuation, introduction of CO, stirring at 50°C for 20 days; pptn.;

in toluene byproducts: 1,5-COD, 1,3,5-COT; (N2); using Schlenk techniques; dissolving of Ru(COT)(COD) in toluene, addn. of tert-butylisonitrile; stirring at 50.degre.C for 55 h; removal of all volatile materials under reduced pressure, extn. with a mixt. of acetone and hexane, fractional crystn.;