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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 40, 2010 - Issue 19
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Original Articles

Iodine-Catalyzed, Rapid and Efficient, One-Pot Synthesis of 1,2-Dihydro-1-arylnaphtho[1,2e][1,3]oxazine-3-ones Under Solvent-Free Conditions

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Pages 2864-2868 | Received 03 Jul 2009, Published online: 25 Aug 2010
 

Abstract

A mixture of β-naphthol, araldehydes, and urea in the presence of a catalytic amount of iodine as catalyst under solvent-free condition was heated for 5 min on a preheated hot plate to get the corresponding 1,2-dihydro-1-aryl-naphtho[1,2-e][1,3]oxazine-3-ones in very good yield.

Notes

a Isolated yield.

b 4c, 4d, 4e, and 4f were characterized by comparision on TLC and by their melting points with authentic samples prepared by the reported method.[ Citation 8 ]

c Novel compounds 4g, 4a, and 4b were characterized by 1H NMR spectral analysis.

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