ChemInform Abstract: Photoaddition React
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S. S. KIM; Y. J. MAH; A. R. KIM; D. J. YOO; S. C. SHIM
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Article
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2010
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John Wiley and Sons
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Photoaddition Reactions of o-Benzoquinones to 1,4-Diphenylbut-1en-3-yne: Formation of Phenanthrenes and Dihydrodioxins. -9-Phenylphenanthrenes (VI) or their precursors (V) are obtained from the photoreaction of o-benzoquinones (I) and enyne (II). Interestingly, the tetrabromo derivative (Ib) is mor