Green Protocol for Synthesis of 1,5-Benzodiazepines and 1,5-Benzothiazepines in the Presence of Nanocrystalline Aluminum Oxide

Abstract

An efficient protocol associated with readily available starting materials, mild conditions, excellent yields, and a broad range of the products in synthetic chemistry was established for synthesis of 1,5-benzodiazepine and 1,5-benzothiazepine derivatives in the presence of a catalytic amount of nanocrystalline aluminum oxide in water.

Keywords:

• o-Aminothiophenol
• 1,5-benzodiazepine
• 1,5-benzothiazepine
• nanocrystalline aluminum oxide
• o-phenylenediamines
• reusable catalyst

ACKNOWLEDGMENT

The authors are thankful to the Alzahra Research Council for partial financial support.