Chlorosulfonation of 2-Styrylbenzothiazole, 2-Styryl- and 2-Phenylbenzoxazole

Autor:	Richard J. Cremlyn, Stephen Graham, David Saunders
Rok vydání:	1994
Předmět:	Acetone hydrazone 2-styrylbenzothiazole Sulfonyl chemistry.chemical_classification Organic Chemistry Hydrazide Chlorosulfonic acid Biochemistry Chloride Inorganic Chemistry chemistry.chemical_compound chemistry medicine Organic chemistry Spectral data medicine.drug
Zdroj:	Phosphorus, Sulfur, and Silicon and the Related Elements. 92:65-75
ISSN:	1563-5325 1042-6507
DOI:	10.1080/10426509408021459
Popis:	2-Styrylbenzothiazole (1), 2-styryl (2)- and 2-phenylbenzoxazole (3) reacted with excess chlorosulfonic acid (6 equivalents) to give the sulfonyl chlorides (8, 14, 20). The pure sulfonyl chlorides were not isolated and were characterised by conversion into 14 sulfonamides (9–13, 15–19, 21–24) the hydrazide (25) and acetone hydrazone (26). 2-Styrylbenzothiazole (1) by heating with a larger amount of chlorosulfonic acid (12 equivalents) afforded a chlorinated bis-sulfonyl chloride (27), which was characterised by formation of the bis-morpholidate (28). The NMR and MS spectral data are briefly discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b4ca2b5007b7bc08134e5030cfb83b88 https://doi.org/10.1080/10426509408021459 Zobrazit plný text záznamu