SPIRO-DIHYDROFURAN-PYRAZOLIDINONES FROM TETRAACETYLETHYLENE AND AZO-DICARBONYL COMPOUNDS

DOI: 10.1016/S0040-4020(01)85804-X

Source and publish data:

Tetrahedron p. 7929 - 7938 (1989)

Update date:2022-08-05

Topics:

Authors:

Celli, A. M.

Donati, D.

Scotton, M.

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Article abstract of DOI:10.1016/S0040-4020(01)85804-X

Tetraacetylethylene (1) reacted with electron-withdrawing azo compounds to give spiro furan-pyrazoles.Their structure was confirmed by an X-ray crystallographic analysis on a derivative of the spiro<1,2,4>triazole-1',3',6'-trione>.The cycloadducts show ring-open chain tautomerism.

Full text of DOI:10.1016/S0040-4020(01)85804-X

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