Hydrochloric Acid → HCID 21188383, compound

Participants

Reaction Steps

1.4 g (0.005 mol) of tert-butyl 4-(2-carbamoylmethoxyethyl)piperazine-1-carboxylate prepared in Example I.4.1. and 14 ml of a 3M solution of hydrochloric acid in ethyl acetate are introduced into a 50 ml three-necked round-bottomed flask fitted with a water-cooled condesner and a mechanical stirrer. The mixture is stirred at room temperature for 2 hours. The precipitate is filtered off and is washed with ethyl acetate. 1.3 g (100%) of 2-(1-piperazinyl)ethoxyacetamide dihydrochloride are obtained. NRM: δ: 3.4 (2H, t, 4.7 Hz); 3.49-3.66 (8H, m); 3.81 (2H, t, 4.7 Hz); 3.87 (2H, s); 6.2 (5H exchangeable, bm); 7.2-7.7; 10.2. Mass spectrum: 188 (MH+).

Provenance & Evidence