77510-05-5Relevant articles and documents
Copper-Catalyzed Aerobic Oxidative [3+2] Annulation for the Synthesis of 5-Amino/Imino-Substituted 1,2,4-Thiadiazoles through C-N/N-S Bond Formation
Yu, Wentao,Huang, Yubing,Li, Jianxiao,Tang, Xiaodong,Wu, Wanqing,Jiang, Huanfeng
, p. 9334 - 9343 (2018)
A copper-catalyzed aerobic oxidative annulation reaction of 2-aminopyridine/amidine with isothiocyanate has been reported. This strategy involving C-N/N-S bond formations provides various 5-amino/imino-substituted 1,2,4-thiadiazole derivatives under a Cu/O2 catalytic system. This method has demonstrated high reactivity, mild reaction conditions, and a broad substrate scope. Furthermore, the synthetic utilities of the approach are demonstrated by further modifications.
Amidrazones. 6(1). Synthesis of 1,2,4-Thiadiazoles by Thermolysis of N3-Thiocarbamoylamidrazone Ylides
Smith, Richard F.,Feltz, Timothy P.
, p. 201 - 203 (2007/10/02)
Reaction of N3-unsubstituted amidrazone ylides (1a and 1b) with alkyl or aryl isothiocyanates gives N3-thiocarbamoylamidrazone ylides (2).Thermolysis of 2 gives 3-alkyl(or aryl)-5-alkyl(or aryl)amino-1,2,4-thiadiazoles (a-i).