Oximation of acetyl(hydroxyimino)acetone: nuclear magnetic resonance spectroscopic, chemical, and X-ray crystallographic studies of the reaction products
- 1 January 1987
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 2
- No. 5,p. 523-529
- https://doi.org/10.1039/p29870000523
Abstract
The oximation of acetyl(hydroxyimino)acetone (1) with hydroxylamine affords a mixture of oxime derivatives. The products obtained by the action of an equimolar amount of hydroxylamine on (1) are the two 3,5-dimethyl-5-hydroxy-4-hydroxyimino-2-isoxazoline isomers (3a and b). The main products obtained by the action of an excess of hydroxylamine on (1) are two pentane-2,3,4-trione trioxime isomers (4a and b) and a little amount of 4-acetyl-3-methylfuroxan oxime (5). N.m.r. and chemical data of all these derivatives are discussed in order to determine both structures and configuration. X-Ray analysis of (3a), (4a), and (5) are also reported.Keywords
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