反应详情

A solution of 4-imidazoleacetic acid hydrochloride (4.0 g, 24.6 mmol) in MeOH (100 mL) was saturated with HCl gas at ambient temperature. Trimethyl orthoformate (10 mL) was added, and the mixture was stirred at ambient temperature overnight then concentrated to dryness in vacuo. The solid was redissolved in MeOH (100 mL) and the above procedure repeated to yield the titled compound as a white solid.

1. concentrationthen concentrated to dryness in vacuo
2. dissolutionThe solid was redissolved in MeOH (100 mL)