Hydrochloric Acid → HCID 10201706, compound

Participants

Reaction Steps

To a solution of 2-[2-(biphenyl-4-yloxy)-ethoxycarbonylamino]-6-chloro-benzoic acid 2-trimethylsilanyl-ethyl ester (340 mg, 0.664 mmol) and 1.0M tetrabutyl ammonium fluoride in THF (0.66 mL, 0.6636 mmol) in DMF (6 mL) and the mixture was stirred for 2 h. 2N HCl was added to adjust the pH to 1-2 and the mixture was partitioned between water and ethyl acetate. The combined organics were washed with water, then brine dried over magnesium sulfate and concentrated to dryness. Purification by crystallization gave 0.121 g of 2-[2-(biphenyl-4-yloxy)-ethoxycarbonylamino]-6-chloro-benzoic acid as a white solid, 801, mp:157.5-158.9.

Provenance & Evidence