Table 2.

Manganese-catalyzed hydrogenation of acetophenone with KBHEt₃ promotor^a.

Entry	Cat. 3 (mol%/p.p.m.)	T (°C)	t (h)b	Yield (%)c
1	0.005/50	100	4	99
2	0.005/50	120	3	99
3	0.0025/25	120	3	99
4	0.001/10	120	6	99
5	0.0005/5	120	9	99
6	No Mn	120	12	Trace
7d	0.005/50	120	3	99

^aReactions were conducted with acetophenone (5 mmol), Mn catalyst 3, KBHEt₃ (1 mol%) in 1,4-dioxane (3 mL), P = 50 bar H₂.

^bTotal reaction time and that of GC analysis, for H₂ uptake traces see Supplementary Information.

^cYield determined by GC with dodecane as internal standard.

^dReactions was conducted under conditions identical to entry 2 in presence of 2 mol% Hg.