Thermal Rearrangement of 3-Allyloxy-1,2-Benzisothiazole 1,1-Dioxides: An Unusual Inversion of Products of Sigmatropic [3,3]-Shift to Give the [1,3]-Isomers

Thermal Rearrangement of 3-Allyloxy-1,2-Benzisothiazole 1,1-Dioxides: An Unusual Inversion of Products of Sigmatropic [3,3]-Shift to Give the [1,3]-Isomers

3-Allyloxy-1,2-benzisothiazole 1,1-dioxides 4 isomerize thermally to give [3,3]- and [1,3]-products 5, 6 of sigmatropic shift, of which the former reacts further to give solely the [1,3]-isomer.

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Veröffentlicht in:Journal of chemical research 1999-12, Vol.23 (12), p.704-705
Hauptverfasser: Cristiano, M. Lurdes S., Brigas, Amadeu F., Johnstone, Robert A. W., Loureiro, Rui M. S., Pena, Paula C. A.
Format: Artikel
Sprache:eng
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Zusammenfassung:3-Allyloxy-1,2-benzisothiazole 1,1-dioxides 4 isomerize thermally to give [3,3]- and [1,3]-products 5, 6 of sigmatropic shift, of which the former reacts further to give solely the [1,3]-isomer.
ISSN:1747-5198
2047-6507
DOI:10.1177/174751989902301210