N-fluoro-compounds. Part II. Reaction of perfluoro-N-fluoropiperidine or perfluoro-N-fluoromorpholine with manganese pentacarbonyl hydride to give the corresponding N–H compounds
Abstract
Treatment of perfluoro-N-fluoropiperidine and perfluoro-N-fluoromorpholine with manganese pentacarbonyl hydride converts them into perfluoropiperidine and perfluoromorpholine, respectively. Perfluoromorpholine reacts with fuming nitric acid in trifluoroacetic anhydride to give perfluoro-N-nitromorpholine, and with anhydrous potassium fluoride to yield perfluoro-5,6-dihydro-2H-1,4-oxazine; thermal chlorination of perfluoromorpholine in the presence of anhydrous potassium fluoride gives, inter alia, 6-chloro-octafluoro-5-oxa-2-azahex-2-ene.