Hydrochloric Acid → Ethyl 3-allyloxycarbonylamino-3-(3-nitrophenyl)-propionate

Participants

Reaction Steps

Diisopropylethylamine (66 ml) and allyl chloroformate (22 ml) in 150 ml of methylene chloride were added at 0° C. to a solution of ethyl 3-amino-3-(3-nitrophenyl)-propionate hydrochloride from II.1b (47 g) in 350 ml of methylene chloride. After a reaction time of 30 min, HCl (1N, 100 ml) was added. The organic phase was separated off, washed with water, dried over MgSO4 and concentrated. A white solid was obtained (yield: 56.4 g).

Provenance & Evidence