A new application of the “mild thiolation” concept for an efficient three-step synthesis of 2-cyanobenzothiazoles: a new approach to Firefly-luciferin precursors
摘要:
An easy, low cost and upscalable three-step synthesis of Firefly luciferin precursors is presented. The 6-alkoxy-2-cyano-benzothiazoles (1) were synthesized starting from easily available O-alkylated 4-aminophenoles (2) via a mild thiolation, Jacobsen cyclization and dehydratization sequence.[GRAPHICS].
作者:V. N. Yarovenko、F. M. Stoyanovich、O. Yu. Zolotarskaya、E. I. Chernoburova、I. V. Zavarzin、M. M. Krayushkin
DOI:10.1023/a:1015082318393
日期:——
The reactions of substituted anilines with chloroacetamide and sulfur in the presence of triethylamine afforded monothiooxamides. When treated with K(3)Fe(CN)(6), the latter underwent cyclization to form 2-carbamoylbenzothiazoles. The reactions were accompanied by the formation of the corresponding thiooxanilic acids, Which also Underwent cyclization to form benzothiazole-2-carboxylic acids.
Besson, Thierry; Rees, Charles W., Journal of the Chemical Society. Perkin transactions I, 1995, # 13, p. 1659 - 1662
作者:Besson, Thierry、Rees, Charles W.
DOI:——
日期:——
A new application of the “mild thiolation” concept for an efficient three-step synthesis of 2-cyanobenzothiazoles: a new approach to <i>Firefly</i>-luciferin precursors
An easy, low cost and upscalable three-step synthesis of Firefly luciferin precursors is presented. The 6-alkoxy-2-cyano-benzothiazoles (1) were synthesized starting from easily available O-alkylated 4-aminophenoles (2) via a mild thiolation, Jacobsen cyclization and dehydratization sequence.[GRAPHICS].