Ammonium chloride catalyzed microwave-assisted synthesis of tetrahydrobenzo[b]pyrans

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  • Vijay Pagore1,
  • Sunil U. Tekale2,
  • Vivekanand B. Jadhav2,
  • Rajendra P. Pawar1,
  1. Department of Chemistry, Deogiri College, Station Road, Aurangabad (MS) India 431 005.
  2. Department of Chemistry, Shri Muktanand College, Gangapur (MS) India 431 109.

Published in Issue 2024-02-03

How to Cite

Pagore, V., Tekale, S. U., Jadhav, V. B., & Pawar, R. P. (2024). Ammonium chloride catalyzed microwave-assisted synthesis of tetrahydrobenzo[b]pyrans. Iranian Journal of Catalysis, 6(2). https://oiccpress.com/ijc/article/view/3904

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Abstract

In the present work, we have developed a mild, efficient, and environmentally benign method for the synthesis of tetrahydrobenzo[b]pyran derivatives via a three-component cyclocondensation of aldehydes, malononitrile and dimedone utilizing ammonium chloride as a simple, easily available and cost effective catalyst under microwave irradiation. This method has several attracting features such as simple experimental set up, easy work-up procedure, high conversions and short reaction times affording the products in moderate to excellent yield.

Keywords

  • Ammonium chloride,
  • MW irradiation,
  • Tetrahydrobenzo[b]pyrans
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