Table 2.

Hydrogenation of cyclic carbonates using Mn complex 1 as a pre‐catalyst.^[a,b]

Entry	Carbonate		[Mn] [mol %]	Conv. [%]	Diol [7, %]	Methanol [8, %]
1		6 b	1	89	75	66
2			2	>99	82	75
3		6 c	1	86	82	65
4			2	>99	97	74
5		6 d	1	82	76	66
6[c]		6 e	1	67	59	43
7[c]			2	77	71	60
8		6 f	1	79	58	41
9			2	97	80	75
10		6 g	1	>99	98	94
11		6 h	1	80	73	57

[a] Conditions: 6 (0.5 mmol), H₂ (30 bar), complex 1, NaO^tBu (1.1 equiv with respect to 1), THF (0.7 mL), temp. (120 °C), 26 h. [b] Yield was calculated using gas chromatography, ethyl heptanoate (25 μL, 0.15 mmol) was used as an internal standard. [c] 1,3‐Propanediol (25 μL, 0.34 mmol) was used as an internal standard.