Add time:07/26/2019 Source:sciencedirect.com
The reactions of hydroxylamine with 2-amino- and 2-methylamino-2-trifluoromethyl-5,5-dimethyltetrahydro-4-pyrones yield 2-amino- and 2-methylamino-2-trifluoromethyl-5,5-dimethyltetrahydro-4-pyrone oximes, which can be converted to 5-amino- and 5-methylamino-5-trifluoromethyl-3-(2-hydroxy-1,1-dimethylethyl)-Δ2-isoxazolines, respectively, by heating in ethanol.
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