The “chlorination/fluorination” technique for aliphatic trifluoromethyl ether synthesis was investigated and a range of products with various functional groups was prepared. The results were compared with oxidative desulfurization-fluorination of xanthates with the same structure.
Quaternisierungen der Perfluoralkylamine (II), (V) und (VIII) mit Methyliodid in Gegenwart von AgBF4 liefern glatt die Titelverbindungen (III), (VI) und (IX); analog erhält man (X), Methyldiethylperfluorethyl‐ (Ausb. 69%) und Methyldiethyl‐ (2‐chlor‐l ,1 ,2‐trifluor‐ethyl)‐ammoniumtetrafluoroborat (50%).
Durch Reaktion des N‐Na‐Salzes des Trifluormethylsulfonylanilins (I) mit dem Anhydrid (II) in Freon‐l 13 bei 95°C läßt sich das Bis‐[trifluormethylsulfony?‐ anilin (III) darstellen.
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