Hydrochloric Acid → HCID 15057613, compound

Participants

Reaction Conditions

Reaction Steps

3.79 g (5.46 mmol) of 5-[N-(4-fluoro-2-trifluoromethylphenyl)sulfamoyl]-isophthalic acid-bis[2-hydroxy-2-(2,2-dimethyl-1,3-dioxolan-4-yl)-ethylamide] is dissolved in a mixture of 40 ml of ethanol and 10 ml of water and the solution is acidified with dilute hydrochloric acid to pH 1. It is stirred at this pH for 4 hours at 60° C. The solution is then adjusted to pH 6.1 with the anion exchanger Amberlite IRA 67, filtered and evaporated to dryness in a vacuum. The solid amorphous residue is dried in a vacuum at 50° C. 2.55 g (4.16 mmol) =76.12% of the theoretical yield is obtained as an amorphous solid.

Provenance & Evidence