Some reactions of 3-hydroxyimino-2,4-dimethyl-1,5-benzodiazepine
作者:C. N. O'Callaghan、Dermot Twomey
DOI:10.1039/j39690000600
日期:——
The reaction of 3-hydroxyimino-2,4-dimethyl-1,5-benzodiazepine with acyl-, thioacyl-, and aryl-hydrazines yields hydrazono-derivatives of 2-acetyl-3-methylquinoxaline. By-products of the reaction indicate that the mechanism involves complete fission of the diazepine ring.
A rapid synthesis of quinoxalines starting from ketones
作者:K. Padmavathy、Gopalpur Nagendrappa、K.V. Geetha
DOI:10.1016/j.tetlet.2010.11.116
日期:2011.1
A fast and general synthesis of quinoxalines, performed in two stages or as a one-pot reaction, starting from ketones via their alpha-hydroxylimino ketone derivatives, and condensation of the latter with 1,2-diaminobenzene under microwave irradiation, is described. (C) 2010 Elsevier Ltd. All rights reserved.