Pavlova, A. S. published the artcileSynthesis of combinatorial libraries of amides, sulfonamides and ureas from 2-acylated derivatives of benzo[d]thiazole-2,5-diamine, Synthetic Route of 61551-49-3, the publication is Izvestiya Vysshikh Uchebnykh Zavedenii, Khimiya i Khimicheskaya Tekhnologiya (2010), 53(7), 11-15, database is CAplus.
Four 2-(acylamino)-5-aminobenzo[d]thiazoles (acyl = MeCO, EtCO, PhCO, 4-MeC6H4CO) were efficiently synthesized in 3 steps by cyclocondensation of 1-chloro-2,4-dinitrobenzene with thiourea followed by acylation of the intermediate 2-amino-5-nitrobenzothiazole and hydrogen reduction of the nitro group on Pd catalyst in DMF. The products were successfully used in the solution-phase parallel synthesis of combinatorial libraries of 5-amide-, 5-sulfonamide- and 5-urea-functionalized 2-(acylamino)benzothiazoles by reactions with carboxylic acids/CDI, sulfonyl chlorides and isocyanates, resp.
Izvestiya Vysshikh Uchebnykh Zavedenii, Khimiya i Khimicheskaya Tekhnologiya published new progress about 61551-49-3. 61551-49-3 belongs to chlorides-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 5,6,7,8-Tetrahydronaphthalene-2-sulfonyl chloride, and the molecular formula is C10H11ClO2S, Synthetic Route of 61551-49-3.
Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics