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The electrochemical fluorination of ethanethiol has been carried out. A number of new fluoroalkyl sulfur compounds have been isolated and characterized.

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The perfluorocyclic ethers as well as the perfluoroalkanoyl fluorides were obtained by the electrochemical fluorination of primary monohydric alcohols and aldehydes containing 4–8 carbon atoms. The five-membered rather than the six-membered perfluorocyclic ethers were formed as the cyclic products. The over-all yields of the perfluorocyclic ethers and the perfluoroalkanoyl fluorides from the alcohols were in the range of 10–20%, and 3–12% respectively. Those from the aldehydes were poor because of the formation of a considerable amount of tarry by-products. The physical properties of the perfluorocyclic ethers obtained are also described.

Perfluoro(N-alkyl lactams) have been obtained in high yields by the reaction of perfluoro(N-alkyl cyclic amines) with fuming sulfuric acid.