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Contents Vol 62(1)

Microwave Heating in Conjunction with UV Irradiation: a Tool for the Oxidation of 1,4-Dihydropyridines to Pyridines

Chad M. Kormos A , Rachel M. Hull A and Nicholas E. Leadbeater A B
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A Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, CT 06269-3060, USA.

B Corresponding author. Email: nicholas.leadbeater@uconn.edu

Australian Journal of Chemistry 62(1) 51-57 https://doi.org/10.1071/CH08414
Submitted: 1 October 2008  Accepted: 6 December 2008   Published: 21 January 2009

Abstract

Microwave heating is used for the preparation of 1,4-dihydropyridines and then, in conjunction with UV irradiation, is used for the efficient oxidation of the 1,4-dihydropyridines to pyridines. The oxidation reactions are performed in a sealed vessel using oxygen as the oxidant and an electrodeless discharge lamp as the irradiation source.


Acknowledgements

The American Chemical Society Petroleum Research Fund is thanked for funding (45433-AC1). Milestone srl is thanked for equipment support and provision of electrodeless discharge lamps. Assistance with liquid chromatography mass spectrometry analysis from Tzipporah Kertesz is gratefully acknowledged.


References


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