Bis pentafluorosulfanyl perfluoroalkylamines

The tertiary amine bis(pentafluorosulfanyl)trifluoromethylamine, (SF5)2NCF3, is formed in over 90% yield from the gas-phase UV photolysis of SF5N(C1)CF3 (210). 

The tertiary amines bis(pentafluorosulfanyl)perfluoroethylamine and bis(pentafluorosulfanyl)perfluoropropylamine are prepared by the following sequence of reactions (217). 

The yields of (SF5)2NC2Fs and (SF5)2NC3F7 are 58 and 8%, respectively (217). The overall yield decreases with the increased chain length of 

Analogous jS-eliminations during photolysis of perfluoro-iV-chlora-mines have been observed by Shreeve et al. (219,220). Addition of GIF to unsaturated systems such as N=S (221, 222) and N=C (219, 223, 224) is known to produce highly fluorinated AT-chloramines. The spectroscopic data (IR, NMR, and mass) of (SFg)2NC2F5 and (SFg)2NC3F7 are reported (217). 

The hydrazine SFgCCFglNNCCFglSFg is obtained in 62% yield by the reaction of AgF2 with FgSN(H)CF3 at 100 C (8). 

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