Photoinduced radical cleavage of bromophenyl ketones

…, JH Sedon, A Gudmundsdottir

文献索引：Wagner, Peter J.; Sedon, James H.; Gudmundsdottir, Anna Journal of the American Chemical Society, 1996 , vol. 118, # 4 p. 746 - 754

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被引用次数: 26

摘要

Several bromophenyl alkyl ketones undergo photoinduced radical cleavage of bromine atoms; the resulting acylphenyl radicals are trapped as the dehalogenated ketones either by alkane solvents or by added thiols. Quantum yields for this process decrease with increasing solvent viscosity; this behavior indicates that recoupling of the phenyl/bromine radical pairs competes with their diffusion apart. In some cases Norrish type II elimination competes ...