REGIOSELECTIVE [3+2] CYCLOADDITION OF NITRILE OXIDES TO 1<i>Н</i>-PYRROLE-2,3-DIONES: SYNTHESIS OF SPIRO[PYRROLEDIOXAZOLES]
DOI:
https://doi.org/10.1007/6460Keywords:
1, 4, 2-dioxazoles, 3-dipoles, nitrile oxides, 1H-pyrrole-2, 3-diones, 3-dipolar cycloaddition.Abstract
1,3-Dipolar cycloaddition of 1H-pyrrole-2,3-diones to nitrile oxides generated in situ from N-hydroxybenzimidoyl chlorides by the action of triethylamine proceeds regioselectively with the formation of 1,4,2-dioxazoles spiro-condensed with the pyrrol-2-one fragment.
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Published
2021-12-15
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Short Communications