In this work, the novel approach via propylphosphonic anhydride (T3P^®)-promoted synthesis of 1,5-benzodiazepines from o-phenylene-diamine, 5,5-dimethylcyclohexane-1,3-dione (dimedone), and aromatic aldehydes has been studied. The reaction conditions were optimized and the scope of the reaction was extended to various aromatic aldehydes. The synthesized compounds were obtained in reasonable to good yields.

中文翻译：

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丙基膦酸酐（T3P®）介导的六氢二苯并[b，e] [1,4]二氮杂-1-酮衍生物的三组分合成

在这项工作中，该新颖的方法通过丙基膦酸酐（T3P ^®）从1,5-苯并二氮杂类促进的合成ø -亚苯基二胺，5,5-二甲基环己烷-1,3-二酮（双甲酮），以及芳族醛一直研究。优化了反应条件，并将反应范围扩展至各种芳族醛。以合理的产率获得了合成的化合物。