The photoreactions of some diaryl ethers
作者： H.J. Hageman , H.L. Louwerse , W.J. Mijs
DOI: 10.1016/S0040-4020(01)92780-2
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摘要: Abstract Diphenyl ether,1,4-diphenoxybenzene, and some substituted diaryl ethers have been irradiated in solution. The reactions observed are: (1) cleavage of the ether bond(s) followed by H-abstraction from solvent yielding phenols benzene derivatives, (2) a photo-Claisen type rearrangement 2- and/or 4-hydroxybiphenyl derivatives. product distribution was found to depend on solvent. o/p ratio diphenyl be concentration dependent, o-isomer increasing at expense p-isomer dilution.
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