Xie, Zengyang; Chen, Ruijiao; Ma, Mingfang; Kong, Lingdong; Liu, Jun; Wang, Cunde published an article in 2019, the title of the article was Copper-catalyzed one-pot coupling reactions of aldehydes (ketones), tosylhydrazide and 2-amino(benzo)thiazoles: An efficient strategy for the synthesis of N-alkylated (benzo)thiazoles.Synthetic Route of 2010-06-2 And the article contains the following content:
An efficient and practical C-N bond formation methodol. for the synthesis of N-(alkyl)benzothiazoles I [R = H, 4-Me, 6-Br, etc.; R1 = n-Pr, Ph, 4-MeOC6H4, etc.] and N-(alkyl)thiazoles II [R2 = H, Me; R3 = Ph, 2-MeC6H4, 2-naphthyl, etc.; R2R3 = (CH2)5; R4 = H, 4-Me, 5-Me] was developed via Cu-catalyzed one-pot two-step cross-coupling of 2-aminobenzothiazoles/2-aminothiazoles and aldehydes/ketones with tosylhydrazide. This cross-coupling reaction proceeded smoothly and tolerated a broad range of functional groups. A variety of functionalized benzothiazoles/thiazoles were obtained in moderate to high yields. Notably, gram-scale synthesis of fanetizole (anti-inflammatory drug) was also realized through this protocol. The experimental process involved the reaction of 4-Phenylthiazol-2-amine(cas: 2010-06-2).Synthetic Route of 2010-06-2
The Article related to alkyl thiazole preparation, aminothiazole carbonyl tosylhydrazide cross coupling copper catalyst, benzothiazole alkyl preparation, aldehyde aminobenzothiazole tosylhydrazide cross coupling copper catalyst and other aspects.Synthetic Route of 2010-06-2
Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica