Acetic Anhydride → HCID 71772326, compound

Participants

Reaction Conditions

Reaction Steps

To a round-bottom-flask containing 60 mL acetic anhydride was added 5 g sodium bisulfite and 5 g sodium indole-2-sulfonate. The mixture was heated and stirred at 70° C. for 1 hr and then at 90° C. for 2 hrs. Upon cooling, the solid was filtered, washed with ether, and dried to yield 5.7 g of sodium 1-acetylindole-2-sulfonate product (93%) as a white solid. The sodium 1-acetylindole-2-sulfonate product was used in the next step without further purification. MP>320° C.; IR (KBr, cm−1) 3480, 3010, 1660, 1490, 1400, 1385, 1150, 1050, 980, 760.

Provenance & Evidence