16540-61-7Relevant articles and documents
Conversion of 4-Substituted Benzo-2,1,3-thiadiazoles to 5-Chloro-4,7-dioxobenzo-2,1,3-thiadiazole by Action of Hydrogen Peroxide and Hydrochloric Acid
Belen'kaya, I. A.,Krokhina, G. P.,Sirik, S. A.,Andronati, S. A.
, p. 96 - 99 (1988)
Under the influence of hydrogen peroxide and hydrochloric acid in acetonitrile 4-substituted benzo-2,1,3-thiadiazoles form 5-chloro-4,7-dioxobenzo-2,1,3-thiadiazole. 4-Alkoxy- and 4-benzo-2,1,3-thiadiazole gives, in additition, the corresponding 5,7-dichloro derivatives.