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Nano-ZnO as heterogeneous catalyst for three-component one-pot synthesis of tetrahydrobenzo[b]pyrans in water

✍ Scribed by M. Hosseini-Sarvari, S. Shafiee-Haghighi


Book ID
118298184
Publisher
Springer US
Year
2012
Tongue
English
Weight
592 KB
Volume
48
Category
Article
ISSN
0009-3122

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## Abstract 4__H__‐Benzo[__b__]pyrans was synthesized under reflux condition in ethanol via condensation of benzaldehyde, malononitrile and dimedone with ZnO‐beta zeolite as an inexpensive and effective catalyst. The key features of the reported protocols are good to excellent yields, short reactio