Sulfochlorination of 2-Thiophenecarboxylic Acid. -Sulfochlorination of thiophenecarboxylic acid (I) using excess amounts of chlorosulfonic acid at 130°C results in the selective formation of the 2,4-substituted thiophene derivative (II) in good yield. -(TARASOV, A. V.; MOSKVICHEV, Y. A.; GRIGORICHEV, A. K.; BELENKII, L. I.; Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol. 46 (2003) 9, 11-13; Yaroslavskii gos. tekh. univ., Yaroslavl' 150023, Russia; Russ., Abstr. Eng.) -R. Staver
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.