Water → HCID 18973041, compound

Participants

Reaction Steps

The title compound was prepared from 5-chloro-3-(4-methyl-2-thenoyl)-4-azaoxindole (Example 30) according to the procedure of Example 2C, using 5-chloro-3-(4-methyl-2-thenoyl)-4-azaoxindole (0.90 g, 3.07 mmol), N-chlorosulfonyl isocyanate (0.40 mL, 4.60 mmol), and acetonitrile (15 mL). The crude N-chlorosulfonyl isocyanate was hydrolyzed by stirring in DMSO in a flask open to the air. The product was isolated by dilution with water and filtration, and was recrystallized from acetic acid. Yield: 190 mg (18%). M.P. 227°-228° C.

Provenance & Evidence