Sulfanilamide → HCID 131716204, compound

Participants

Reaction Steps

To a refluxing solution of 13 g sulfanilamide in 800 ml absolute ethanol is added 21 g 3-hydroxymethylidene-6-methyl-thioflavanone. After sixteen hours the reaction mixture is cooled and the crystals which separated are collected. After recrystallisation in a mixture of acetone and light petroleums, pure 3-(N-4-sulfamoylphenyl)aminomethylidene-6-methyl-thioflavanone is obtained as yellow crystals; m.p. 210°-213° C.

Provenance & Evidence