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The trifluoromethanethiolate anion may be generated in situ by the reaction of thiophosgene with potassium fluoride in acetonitrile. This system is used to prepare trifluoromethyl aryl sulfides from activated fluoro- and chloroaromatic substrates via nucleophilic substitution.
The strongly hydrogen bonded complexes of polyvinylphenol and tetra-alkylammonium fluorides show unusual and unexpected thermal behaviour consistent with the in situ alkylation of the polymer.
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