ammonia in toluene 0.5 h; Ambient temperature;

1: 99 percent / nitric oxide, 1-methyl-2-pyrrolidinone (NMP) / 1 h / Ambient temperature 2: 99 percent / NH3 / toluene / 0.5 h / Ambient temperature View Scheme

in ethanol mixt. of Ru compd. and ligand refluxed in EtOH for 8 h in air; evapd. to dryness in vac., chromy. (silica gel, CH2Cl2/MeCN (5:1) Ru(acac)2, then (5:1) for Ru(acac)2(L)), solvent evapd. in vac.; elem. anal.;