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

Document Type : Articles

Authors

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.

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


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