On February 28, 2022, Cai, Mingzhong; Ye, Qian; Huang, Wencheng; Hao, Wenyan published an article.SDS of cas: 92-36-4 The title of the article was Recyclable copper-catalyzed cyclization of o-haloanilides and metal sulfides: An efficient and practical access to substituted benzothiazoles. And the article contained the following:
An efficient heterogeneous copper-catalyzed cyclization of o-haloanilides and metal sulfides has been achieved via the C-S coupling in DMF at 80 or 140° in the existence of an MCM-41-bound NHC-Cu(I) catalyst and then intramol. condensation, delivering a wide range of substituted benzothiazoles in mostly good to high yields. This new MCM-41-NHC-CuI complex can facilely be obtained by a two-step procedure starting from easily accessible and inexpensive reagents and reused more than seven times without any significant loss of its catalytic efficiency. The present protocol has been successfully applied to the gram-scale synthesis of two antitumor agents 5F203 and PMX 610. The experimental process involved the reaction of 2-(4-Aminophenyl)-6-methylbenzothiazole(cas: 92-36-4).SDS of cas: 92-36-4
The Article related to benzothiazole preparation green chem, haloanilide metal sulfide cross coupling intramol condensation, mesoporous silica mcm 41 anchored nhc copper complex, Heterocyclic Compounds (More Than One Hetero Atom): Thiazoles, Isothiazoles and other aspects.SDS of cas: 92-36-4
Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica