Issue 23, 1977

Photochemistry of cyclic azo-compounds: preparation of highly strained spiro-compounds

Abstract

Photofragmentation of spiro-3H-pyrazoles (1) having ring bridges of different size, affords spiro[2.5]-octatrienes (2ae) or spiro[2.6]nonatetraenes (2f, g), which, in a few cases, undergo an additional [1,7]-H-shift to (3) and (4).

Article information

Article type
Paper

J. Chem. Soc., Chem. Commun., 1977, 843-845

Photochemistry of cyclic azo-compounds: preparation of highly strained spiro-compounds

H. Dürr, S. Fröhlich, B. Schley and H. Weisgerber, J. Chem. Soc., Chem. Commun., 1977, 843 DOI: 10.1039/C39770000843

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