Hydrochloric Acid → HCID 21487306, compound

Participants

Reaction Conditions

Reaction Steps

43 g of 2,4-diphenoxy-5-sulfamoyl-benzoic acid (0.1 mol) prepared according to Example 1 (c) were stirred with 80 ml of 2-methoxybenzylamine for 3.5 hours at 140° C. The almost colorless reaction solution which, had been cooled to about 80° C, was then diluted with 150 ml of ethanol, and the solution was introduced while stirring into 1.0 l of 1N hydrochloric acid at room temperature. The reaction product, which had precipitated in crystals, was suction-filtered and washed with water and then boiled up for a short time with 0.3 l of ethanol, during which the major part of it remained undissolved. After cooling to room temperature, it was suction-filtered and washed with ethanol and finally dried on a steam bath.

Provenance & Evidence