in tetrahydrofuran N2 atmosphere; stirring (1 h); filtration, removal of solvent (vac.), addn. of hexane, filtration off, washing (hexane), drying (vac.); elem. anal.;

in hexane under strict exclusion of air and moisture using vac. line and glove boxtechniques and Schlenk glassware; Ga complex (12 equiv.) added dropwise to suspn. of Ru complex in n-hexane at room temp.; filtered; washed (n-hexane); dried; redissolved in toluene; filtered; solvent removed (vac.); recrystd. (n-hexane); elem anal.;

in hexane under strict exclusion of air and moisture using vac. line and glove boxtechniques and Schlenk glassware; soln. of In complex (3 equiv.) in n-h exane added slowly dropwise to suspn. of Ru complex in n-hexane at room temp.; mixt. refluxed for 2 h; solvent removed (vac.); ppt. washed (n-hexane); filtered; residue dried;recrystd. (n-hexane); elem anal.;

Ag(OSO2CF3) in acetonitrile Refluxing, 2 h, AgOTf added.; Filtd., evapd., ether added.;

in acetonitrile byproducts: AgCl; refluxing for 1 h, cooling to room temp.; filtn., washing (diethyl ether), drying in vac., elem. anal.;