Ammonium Chloride → HCID 69421745, compound

Participants

Reaction Steps

A solution of ester (117a, 4.34 g, 10.26 mmol), Fe powder (2.40 g, 43.07 mmol), and NH4Cl (2.30 g, 43.07 mmol) in EtOH (80 mL) and H2O (40 mL) was heated to reflux for 2 h. The solution was cooled to RT and filtered through CELITE®. The filter cake was washed with EtOAc (200 mL), the aqueous and organic layers were separated, and the organic layer was washed with brine (2×60 mL). The solution was dried with anhydrous MgSO4, and evaporated to provide 3.98 g (98%) of the [4-amino-3-(3-bromo-5-cyano-phenoxy)-2-fluoro-phenyl]-acetic acid ethyl ester (117b).

Provenance & Evidence