Reactivity of the ethyl oleate in the [3+2] cycloaddition to arylonitrile N-oxide: a reexamination

The course of the reactions between ethyl oleate and aromatic nitrile N-oxides was reexamined under the laboratory conditions. The reaction course was explained on the basis of the DFT quantumchemical calculations. It was found that independently of the reaction protocol, in any case the expected 2-isoxazolines are not formed. Instead of this, respective diarylfuroxanes were isolated from post-reaction mixtures.

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