Journal
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS
Volume 177, Issue 11, Pages 2633-2638Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/10426500214558
Keywords
AlCl3-DMF; 2(3H)-benzothiazolone; 6-acyl-2(3H)-benzothizolones; acylation reaction; polyphosphoric acid; ZinCl(2)-DMF
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The use of polyphosphoric acid and the complex AlCl3-DMF in 6-acylation of 2(3H)-benzothiazolones previously have been reported. Instead of the frequently used AlCl3 as a catalyst in the Friedl-Crafts reactions, we conducted the acylation of 2(3H)-benzothiazones using zinc chloride as a catalyst in DMF as solvent and acid chlorides or anhydrides as acylating agents.
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