121649-43-2Relevant academic research and scientific papers
New General Synthesis of Tetrahydro-1,2,4,5-tetrazin-3(2H)-one Derivatives and Stable 3,4-Dihydro-3-oxo-1,2,4,5-tetrazin-1(2H)-yl Radical Derivatives
Milcent, Rene,Barbier, Geo,Capelle, Sylvie,Catteau, Jean-Pierre
, p. 319 - 324 (2007/10/02)
Reactions of 2-chloroformylhydrazones of aromatic aldehydes or ketones 2 with various hydrazines were converted to monocarbonohydrazone derivatives 3 or 5 and/or tetrahydro-1,2,4,5-tetrazin-3(2H)-one derivatives 6,7.By oxidation with lead dioxide, compounds 6 were transformed into stable 3,4-dihydro-3-oxo-1,2,4,5-tetrazin-1(2H)-yl radical derivatives 8.
Verdazyls. Part 33. EPR and ENDOR Studies of 6-Oxo- and 6-Thioxoverdazyls. X-Ray Molecular Structure of 1,3,5-Triphenyl-6-oxoverdazyl and 3-tert-Butyl-1,5-diphenyl-6-thioxoverdazyl
Neugebauer, Franz A.,Fischer, Hans,Krieger, Claus
, p. 535 - 544 (2007/10/02)
A range of 6-oxoverdazyls 2b-h and 6-thioxoverdazyls 3a-c and 3e-h has been directly prepared by dehydrogenation of the corresponding 1,4,5,6-tetrahydro-1,2,4,5-tetrazin-3(2H)-ones 5b-h and thiones 7a-c and 7e-h with lead dioxide, potassium hexacyanoferra
Synthesis of 5-Aryl-3-carbazoyl-1,3,4-oxadiazol-2(3H)-one. Derivatives and their Ring Transformation into 5-Benzamido-1,2,4-triazolidine-3,5-dione Derivatives
Milcent, Rene,Barbier, Geo,Tzirenstchikow, Tatiana,Lebreton, Luc
, p. 231 - 236 (2007/10/02)
Some 5-aryl-3-carbazoyl-1,3,4-oxadiazol-2(3H)-one derivatives 6 and 9 have been synthesized in two ways.The expected thermal ring transformation into 2,5-disubstituted 1,3,4-oxadiazoles did not occur but, by acid hydrolysis of 5-aryl-3-3-benzylidene-2-me
