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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 20, 1990 - Issue 2
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Original Articles

Novel One-Pot Photochemical Synthesis of 3-C-Aroyl-2-aryl-4H-1-benzopyran-4-ones

H. Mohindra Chawla Department of Chemistry, Indian Institute of Technology, Hauz Khas, New Delhi, 110 016, India
&
S. Kumar Sharma Department of Chemistry, Indian Institute of Technology, Hauz Khas, New Delhi, 110 016, India
Pages 301-306 | Received 29 Sep 1989, Published online: 24 Oct 2006
 
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Abstract

Methylene blue sensitized photooxygenation of 3-arylidene-2-aryl-2,3-dihydro-4H-1-benzopyran-4-ones (1 a-d) has provided 3-C-aroyl-2-aryl-4H-1-benzopyran-4-ones (2a-d) in moderate to good yield. A plausible mechanism for the reaction involved has been suggested.

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