96134-33-7Relevant academic research and scientific papers
Photoredox catalyzed dealkylative aromatic halogen substitution with tertiary amines
Dilman, Alexander D.,Frumkin, Alexander E.,Levin, Vitalij V.,Lipilin, Dmitry L.,Tyurin, Alexey Yu.
, (2021/06/18)
A reaction of aromatic halides bearing electron-withdrawing groups with tertiary amines in the presence of an iridium catalyst under blue light irradiation is described. Products of the aromatic substitution of the halide by the dialkylamino fragment are
Reaction of 1,4,2-Dithiazolium Salts with Amino Compounds
Yonemoto, Katsumi,Shibuya, Isao
, p. 4043 - 4050 (2007/10/02)
Systematic studies on the behavior of 1,4,2-dithiazolium cations (1) toward various amino compounds (ammonia, aliphatic and aromatic amines, hydrazine, semicarbazide, thiosemicarbazide derivatives, etc.) were performed.The reaction pathway could be classified into three types depending on possibile three fission modes of the initially-formed adduct.The main products were 5-imino-1,4,2-dithiazole, thiourea, and 1,3,4-thiadiazole derivatives, through the three different pathways, respectively.In order to clarify the factors controlling the reaction courses, the reactions of 1 with p-substituted aniline derivatives were carried out under systematically varying conditions.The strength of bases and the polaritiy of solvents had clear influence on the reactivity.The reaction mechanism is also discussed.
Derives de la dihydro-2,4 triazole-1,2,4 thione-3 et de l'amino-2 thiadiazole-1,3,4 a partir de nouvelles thiosemicarbazones d'esters
Malbec, Frederique,Milcent, Rene,Barbier, Geo
, p. 1689 - 1698 (2007/10/02)
A new general synthesis of 4,5-disubstituted 2,4-dihydro-1,2,3-triazole-3-thiones is proposed.These heterocycles are obtained by the action of primary amines, aralhydrazines or aroylhydrazines on the thiosemicarbazones of esters.These last compounds are prepared by action of chlorhydrates of iminoesters on thiosemicarbazide in dimethylformamide.These thiosemicarbazones react also with strong acids, acid anhydrides and chlorides; by thermolysis and they give 2-amino-1,3,4-thiadiazole derivatives.Also, two derivatives of 1,2,4-triazolo-1,3,4-thiadiazole have been prepared.
