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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 34, 2004 - Issue 4
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Original Articles

A Novel Method for the Synthesis of 2(3H)‐Benzimidazolones, 2(3H)‐Benzoxazolone, and 2(3H)‐Benzothiazolone via In Situ Generated Ortho Substituted Benzoic Acid Azides: Application of Ammonium Azide and Vilsmeier Complex for Acid Azide Generation

Radhakrishnan Sridhar Organic Chemistry Division, Central Leather Research Institute, Chennai, 600 020, India
&
Paramasivan T. Perumal Organic Chemistry Division, Central Leather Research Institute, Chennai, 600 020, IndiaCorrespondence[email protected]
Pages 735-742 | Received 28 Aug 2003, Published online: 16 Aug 2006
 
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Abstract

An easy and generalized route to 2(3H)‐benzimidazolones, 2(3H)‐benzoxazolone and 2(3H)‐benzothiazolone is attempted. A novel one‐pot method for the in situ generation and cyclisation of ortho substituted benzoic acid azides is reported via the application of ammonium azide and Vilsmeier complex.

Acknowledgment

One of the authors R. S. is thankful to CSIR, New Delhi for the award of Fellowship.

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