PHOTOCHEMICAL FORMATION OF ISOMERIC QUINONE METHIDES FROM o-QUINONES AND ONE-WAY ISOMERIZATION

  • Kim, Ae-Rhan (Department of Chemistry, Chonbuk National University )
  • Published : 1997.06.01

Abstract

Irradiation (300 nm) of 1, 2-benzoquinones 1 and diphenylacetylene 2 in dichloromethane yielded two isomeric quinone methides, 6 and 7. The same types of quinone methides, 9 and 10 (or 12 and 13) were obtained from the photocycloadditions of 9, 10-phenanthrenequinone 8 (or acenaphthenequinone 11) to diphenylacetylene 2. One-way photoisomerizations were observed between each isomeric adducts, (6, 7), (9, 10) and (12, 13).

Keywords

References

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