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Amberlyst A-21®: An efficient, cost-effective and recyclable catalyst for the synthesis of substituted 4H-chromenes

Paper ID Volume ID Publish Year Pages File Format Full-Text
52509 46875 2007 4 PDF Available
Title
Amberlyst A-21®: An efficient, cost-effective and recyclable catalyst for the synthesis of substituted 4H-chromenes
Abstract

A variety of substituted 4H-chromene derivatives have been synthesized in good to excellent yields from o-hydroxybenzaldehydes and ethyl cyanoacetate or malononitrile in ethanol using inexpensive and reusable catalyst i.e., Amberlyst A-21® under mild reaction conditions. The recovered activated catalyst is recycled in five times subsequent runs with no decrease in activity. The use of reusable catalyst makes this procedure quite simple, more convenient, economically viable and environmentally friendly.

Keywords
o-Hydroxybenzaldehyde; Heterogeneous catalysis; Ethyl cyanoacetate; Chromenes
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Amberlyst A-21®: An efficient, cost-effective and recyclable catalyst for the synthesis of substituted 4H-chromenes
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 12, December 2007, Pages 2208–2211
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us