Study of the Acylation Reaction of 2(3H)-Benzothiazolones in the Mixture of ZnCl 2 -DMF
作者:Faouzi Guenadil、Houcine Aichaoui
DOI:10.1080/10426500214558
日期:2002.11.1
The use of polyphosphoric acid and the complex AlCl 3 -DMF in 6-acylation of 2(3H)-benzothiazolones previously have been reported. Instead of the frequently used AlCl 3 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.
先前已经报道了多磷酸和复合物 AlCl 3 -DMF 在 2(3H)-苯并噻唑酮的 6-酰化中的应用。代替经常使用的 AlCl 3 作为 Friedl-Crafts 反应中的催化剂,我们使用氯化锌作为催化剂在 DMF 中作为溶剂和酰氯或酸酐作为酰化剂进行了 2(3H)-苯并噻唑的酰化。