Table 1.

Hydrogenation of Carbonyls Catalyzed by Ruthenium Hydrides 10 and 18 and by Iron Hydride 8.^a

substrate	catalyst	Time (h)	conversion (%)	yield (%)b
PhCHO	10	1	100	91
PhCHO	18	1	100	92
PhCHO	8	1	100	90
PhCOCH3	10	20	99	80
PhCOCH3	18	24	97	83
PhCOCH3	8	20	99	83

^aConditions: [substrate] = 0.30 M, [catalyst] = 0.0060 M, p(H₂) = 3 atm, in toluene at 25 °C.

^bisolated yield.