96134-33-7Relevant articles and documents
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
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.