Abstract
5-Hydroxy-5-(polyfluoroalkyl)isoxazol-4(5H)-one oximes have been obtained by nitrosation of lithium 3-polyfluoroalkyl-1,3-diketonates followed by treatment of intermediate 3-(poly-fluoroalkyl)propane-1,2,3-trione 2-oximes with hydroxylamine hydrochloride. The one-pot protocol comprising both stages has been elaborated.
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