MoO2Cl2(DMF)2 catalyzed microwave assisted reductive cyclisation of nitroaromatics into dibenzodiazepines

I. R. Siddiqui; Anushree Srivastava; Archana Singh; Shayna Shamim; Pragati Rai

doi:10.1039/C4RA11089G

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MoO₂Cl₂(DMF)₂ catalyzed microwave assisted reductive cyclisation of nitroaromatics into dibenzodiazepines†

I. R. Siddiqui,*^a Anushree Srivastava,^a Archana Singh,^a Shayna Shamim^a and Pragati Rai^a

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* Corresponding authors

^a Laboratory of Green Synthesis, Department of Chemistry, University of Allahabad, Allahabad-211002, India
E-mail: dr.irsiddiqui@gmail.com

Abstract

The paper describes a gentle and highly efficient protocol for the synthesis of dibenzodiazepines by reductive cyclisation of nitroaniline to dibenzodiazepines under microwave irradiation catalyzed by MoO₂Cl₂(DMF)₂ involving Ph₃P as reducing agent. This synergic approach results in the transformation of nitroaromatics into dibenzodiazepines in high yield and is applicable to the construction of a wide variety of dibenzo(di/ox)azepines and other structurally related heterocycles.

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Article information

DOI: https://doi.org/10.1039/C4RA11089G
Article type: Paper
Submitted: 24 Sep 2014
Accepted: 05 Dec 2014
First published: 05 Dec 2014

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RSC Adv., 2015,5, 5256-5260

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MoO₂Cl₂(DMF)₂ catalyzed microwave assisted reductive cyclisation of nitroaromatics into dibenzodiazepines

I. R. Siddiqui, A. Srivastava, A. Singh, S. Shamim and P. Rai, RSC Adv., 2015, 5, 5256 DOI: 10.1039/C4RA11089G

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