4396-48-9Relevant academic research and scientific papers
Iron-catalyzed direct amination of azoles using formamides or amines as nitrogen sources in air
Wang, Jian,Hou, Ji-Ting,Wen, Jun,Zhang, Ji,Yu, Xiao-Qi
supporting information; experimental part, p. 3652 - 3654 (2011/05/02)
A new iron-catalyzed, direct C-H amination of azoles at C2 has been developed by using formamides or amines as nitrogen sources. Imidazole is the only additive in the catalyst system and oxygen in air is employed during the transformation process.
Oxidation of Aldehyde Semicarbazones with Lead Dioxide: Application to the Syntheses of 2-Amino-1,3,4-oxadiazoles and 2,4-Dihydro-1,2,4-triazol-3-ones
Nguyen, Thu-Huong,Milcent, Rene,Barbier, Geo
, p. 1383 - 1388 (2007/10/02)
The oxidation of aldehyde semicarbazones with lead dioxide in acid media was effected.The 4,4-disubstituted semicarbazones of aromatic aldehydes afford 2-amino-1,3,4-oxadiazole derivatives.The 2,4-disubstituted semicarbazones give 2,4-dihydro-1,2,4-triazo
