Pyridine → HCID 53851686, compound

Participants

Reaction Steps

2.1 g (0.01 mol) of 3-(4-aminobenzenesulfonyl) acrylonitrile are dissolved in 100 ml dioxane, and 2 ml of pyridine are added thereto. A solution of 2.21 g (0.01 mol) of 3-carboxybenzenesulfonyl chloride in 50 ml dioxane is added portionwise at room temperature and the reaction mixture is held overnight. After filtering and mixing the filtrate with about 4 volumes of water the mixture is left at room temperature for 5 days. White flocs separate which are recovered by filtration and dried, giving 3-[4-(3-carboxybenzenesulfonamido)-benzenesulfonyl]acrylonitrile: ##SPC30##

Provenance & Evidence