Photochemical reaction of diphenylcyclobutenedione derivatives. Formation and reaction of conjugated bisketene and its N-analog.

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概要

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• The photolysis of diphenylcyclobutenedione derivatives (Va, b) under N<SUB>2</SUB> and that in the presence of substrate, O<SUB>2</SUB> or isocyanide, have been studied. The former resulted in the recovery of a large amount of V and the fragmentation; the latter gave the insertion products into V, diphenylmaleic anhydrides and iminocyclopentenones in good yield. The intermediates, bisketene and ketene-ketenimine as primary photo products were confirmed by the photolysis of Va in methanol to give succinates and by low-temperature IR-technique. Structural aspects of bisketene intermediate were discussed.

• 公益社団法人 日本化学会の論文

著者

• Takizawa Takeo

  Faculty of Pharmaceutical Sciences, The University of Tokyo

• Obata Naruyoshi

  Faculty of Pharmaceutical Sciences, University of Tokyo

関連論文

• The Cycloaddition Reaction of Isonitrile to Ketenimine Formed by the Reaction of Isonitrile with Carbene
• Catalytic Activities of a Polyoxime–cobalt Complex for the Addition Reaction of an Alcohol to Acrylaldehyde and for the Polymerization of Styrene
• Photochemical reaction of diphenylcyclobutenedione derivatives. Formation and reaction of conjugated bisketene and its N-analog.

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