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Nanosized TiO2as a Recyclable Heterogeneous Catalyst for the Synthesis of Tetrahydrobenzo[b]pyran Derivatives

✍ Scribed by Anandgaonker, Priyanka L.; Jadhav, Sunita; Gaikwad, Suresh T.; Rajbhoj, Anjali S.


Book ID
121549932
Publisher
Springer
Year
2013
Tongue
English
Weight
841 KB
Volume
25
Category
Article
ISSN
1040-7278

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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