Ethyl 6,6,6-trifluoro-3-(nitromethyl)hexanoate → 4-(3,3,3-Trifluoropropyl)pyrrolidin-2-one

Participants

Reaction Steps

A mixture of crude ethyl 6,6,6-trifluoro-3-(nitromethyl)hexanoate a7 (50 g), Raney Nickel (570 mg, 9.7 mmol, 0.05 eq) and Vanadium metavanadate (227 mg, 2 mmol, 0.01 eq) in ethanol (1 l) is placed in an autoclave under hydrogen pressure (50 bars) at 50° C. for 40 h. After cooling, filtration over celite and condensation under vacuum, 4-(3,3,3-trifluoropropyl)pyrrolidin-2-one a8 (34.3 g) is isolated.

Provenance & Evidence