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Synthesis of 2-Oxazolone-4-carboxylates from 3-Nosyloxy- and 3-Bromo-2-ketoesters

โœ Scribed by Okonya, John F.; Hoffman, Robert V.; Johnson, M. Catherine

Book ID
120446253
Publisher
American Chemical Society
Year
2002
Tongue
English
Weight
95 KB
Volume
67
Category
Article
ISSN
0022-3263

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โœ Robert V. Hoffman; M.Catherine Johnson; John F. Okonya ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 297 KB

3-Nosyloxy-2-ketoesters, available from 2-ketoesters, react efficiently with methyl carbamate and tosic acid in refluxing toluene to provide 4-carboalkoxy-4oxazolin-2-ones in good yields (41-84%).