The reaction of substituted (difluoroiodo)arenes with 1-phenyl-1-(m-chlorophenyl)ethylene results in 1,1-difluoro-1-(m-chlorophenyl)2-phenylethane, with 1-phenyl-1-(p-methoxyphenyl)ethylene in 1,1-difluoro-1-phenyl-2-(p-methoxyphenyl) ethane, and with 1-phenylcyclopentene and 1-phenylcyclohexene in rearranged gem-difluoro compounds. The reaction with norbornene results in three products: fluoronortricyclane (9–12%), 2-exo-7-syn-difluoronorbornane (75–86%), and 2-exo-7-anti-difluoronorbornane (5–15%) depending upon the substituent on the phenyl ring in (difluoroiodo)arenes.
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Gregorčič et al. (1977) studied this question.
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