Glycine methyl ester hydrochloride → HCID 178501583, compound

Participants

Reaction Steps

A solution of 139.5 g (0.446 moles) of (2-amino-5-fluorophenyl)(2-bromophenyl)methanimine, 69.9 g (0.557 moles) of glycine methyl ester hydrochloride and 1.68 L of methanol was stirred at reflux for 5 hours under nitrogen. The solvent was then removed by evaporation under vacuum and the yellow, residual solid was partitioned between 1.4 L of methylene chloride and 1.4 L of saturated NaHCO3 solution. The organic layer was separated and the aqueous layer was extracted with 0.5 L of methylene chloride. The combined organic extracts were dried with Na2SO4, filtered, and concentrated under vacuum. The residue was redissolved in 0.5L of methylene chloride and concentrated to a dark yellow semi-solid (156.6 g). This solid was recrystallized from 400 mL of 1:3 EtOAc/Hexane to give 72.8 of (Z)-N-[(2-Amino-5-fluorophenyl)(2-bromophenyl)methylene]glycine methyl ester).

Provenance & Evidence