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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 28, 1998 - Issue 20
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Original Articles

Selective C-3 Monochlorination of 2-Methylchromones and Chromone-2-Carboxaldehydes

S. G. Jagadeesh Department of Chemistry, Osmania University, Hyderabad, 500007, INDIA
,
G. L. DavidKrupadanam Department of Chemistry, Osmania University, Hyderabad, 500007, INDIA
&
G. Srimannarayana Department of Chemistry, Osmania University, Hyderabad, 500007, INDIA
Pages 3827-3833 | Received 22 Apr 1998, Published online: 23 Aug 2006
 
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Abstract

2-methylchromones (1a-d) and chromone-2-carboxaldehydes (3a-d) on reaction with aq. NaOCl yield selectively 3-chlorochromones (2a-d and 4a-d) in yield 61–93%.

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