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Title of Journal: Res Chem Intermed

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Abbravation: Research on Chemical Intermediates

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Springer Netherlands

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DOI

10.1007/s002280000160

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1568-5675

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Atomeconomy click synthesis of tetrahydrobenzoE

Authors: Maryam Moghaddas Abolghasem Davoodnia
Publish Date: 2014/01/29
Volume: 41, Issue: 7, Pages: 4373-4386
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Abstract

Carbonbased solid acid has been used as a mild and efficient heterogeneous catalyst for the synthesis of tetrahydrobenzobpyran derivatives via a onevessel threecomponent cyclocondensation of dimedone aryl aldehydes and malononitrile with high atom economy ranging from 942 to 954  The remarkable features of this new method are short reaction times high yields clean reaction profiles and simple workup procedure The reactions were performed in ethanol and the catalyst could be recycled after a simple workup and used for many runs without significant loss of its activity However using aliphatic aldehydes moderate yields of the products were obtained The structure of the catalyst was confirmed by FTIR spectroscopy energy dispersive Xray Xray diffraction and the N2 adsorption/desorption analysis techniques

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