A Recyclable and Highly Effective ZnO-be
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Santosh Shriram Katkar; Machhindra Karbhari Lande; Balasaheb Ramrao Arbad; Sures
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Article
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2011
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John Wiley and Sons
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English
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## Abstract 4__H__βBenzo[__b__]pyrans was synthesized under reflux condition in ethanol via condensation of benzaldehyde, malononitrile and dimedone with ZnOβbeta zeolite as an inexpensive and effective catalyst. The key features of the reported protocols are good to excellent yields, short reactio