N-fluoro-compounds. Part VI. Preparation and some reactions of perfluoro-NN′-difluoropiperazine; cross-linking of a nitroso rubber
- 1 January 1973
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- p. 1111-1114
- https://doi.org/10.1039/p19730001111
Abstract
Perfluoro-NN′-difluoropiperazine, prepared by electrochemical fluorination of piperazine, reacts with aqueous potassium iodide to give oxalic acid and with perfluorocyclobutene in the presence of u.v. light to yield perfluoro-(Ncyclobutyl-N′-fluoropiperazine). Photolysis of the NN′-difluoro-compound in silica, either alone or in the presence of oxygen, produces a polymeric wax that yields a nitroxide-containing, purplish-blue liquid when heated andean be used to cross-link elastomeric trifluoronitrosomethane–tetrafluoroethylene–hexafluorobutadiene copolymers.Keywords
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