Gas-phase thermolysis of benzotriazole derivatives. Part 4. Pyrolysis of 1-acylbenzotriazole phenylhydrazones. Interesting direct routes towards<i>N</i>-aminobenzimidazoles
作者:Hanan Al-Awadi、Maher R. Ibrahim、Nouria A. Al-Awadi、Yehia A. Ibrahim
DOI:10.1002/jhet.5570450314
日期:2008.5
Flash vacuum pyrolysis (FVP) of 1-acylbenzotriazole phenylhydrazones gave benzonitriles, aniline and 2-arylbenzimidazole derivatives. Static pyrolysis of the same substrates at 180 °C gave exclusively the corresponding N-anilino-2-arylbenzimidazole derivatives. Pyrolysis of the isomeric 2-acylbenzotriazole phenylhydrazones gave similar products.
1-酰基苯并三唑苯基hydr的快速真空热解(FVP)得到苄腈,苯胺和2-芳基苯并咪唑衍生物。在180°C下对相同底物进行静态热解,仅得到相应的N-苯胺基-2-芳基苯并咪唑衍生物。异构体2-酰基苯并三唑苯基hydr的热解得到相似的产物。