Facile synthesis of 4-substituted 1,2,4,5-tetrahydro-1,4-benzodiazepin-3-ones by reductive cyclization of 2-chloro-N-(2-nitrobenzyl)acetamides
作者:Leandro D. Sasiambarrena、Ivan A. Barri、Guido G. Fraga、Rodolfo D. Bravo、Agustín Ponzinibbio
DOI:10.1016/j.tetlet.2018.12.029
日期:2019.1
A facile and efficient method was developed for the synthesis of 1,2,4,5-tetrahydro-1,4-benzodiazepine-3-ones from 2-chloro-N-(2-nitrobenzyl)acetamides through a reductive cyclization using iron-ammonium chloride in ethanol–water in good yields. This method provides a simple approach to these benzodiazepine-3-ones which are of high value in the field of medicinal chemistry research.
开发了一种简便有效的方法,可通过使用铁-铁的还原环化反应,从2-氯-N-(2-硝基苄基)乙酰胺合成1,2,4,5-四氢-1,4-苯并二氮杂-3-酮乙醇-水中的氯化铵收率高。该方法为这些在医学化学研究领域中具有高价值的苯并二氮杂-3-酮提供了一种简单的方法。