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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 35, 2005 - Issue 20
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Original Articles

Manganese(III) Acetate Mediated Oxidation of Flavanones: A Facile Synthesis of Flavones

Om V. Singh Phytochemistry Division, Tropical Botanic Garden and Research Institute, Thiruvananthapuram-695 562, Kerala, IndiaCorrespondence[email protected]
,
M. Muthukrishnan Phytochemistry Division, Tropical Botanic Garden and Research Institute, Thiruvananthapuram-695 562, Kerala, India
&
Gopan Raj Phytochemistry Division, Tropical Botanic Garden and Research Institute, Thiruvananthapuram-695 562, Kerala, India
Pages 2723-2728 | Received 18 May 2005, Published online: 22 Aug 2006
 
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Abstract

Oxidation of flavanones (1a–o) with manganese(III) acetate by heating in acetic acid in presence of perchloric acid afforded exclusively flavones (2a–o) by dehydrogenation in almost quantitative yields.

Acknowledgments

Authors are grateful to the International Foundation of Science, Sweden, and State Committee on Science, Technology and Environment, Thiruvananthapuram, Government of Kerala, India, for financial support.

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