- α,α,ω-TRIHYDRO-α-HALOPERFLUOROALKANES
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A synthesis has been developed for α,α,ω-trihydrohaloperfluoroalkanes, H(CF2CF2)n*CH2X, where X is Cl or Br and n is 1 or 4.It is based on the cleavage of the aromatic sulfonate esters of α,α,ω-trihydroperfluoroalkan-α-ols by alkali metal halides.
- Shilin, S. V.,Florensova, O. N.,Chernov, N. F.,Voronkov, M. G.
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p. 1697 - 1699
(2007/10/02)
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- α,α-DISUBSTITUTED POLYFLUOROALKANES
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The reaction of 1,1,ω-trihydropolyfluoro-1-alkanols with triphenyldichloro- and triphenyldibromophosphorus gave 1-chloro- and 1-bromo-1,1,ω-trihydropolyfluoroalkanes.The 1,2-elimination of HF from the alkanes by the action of basic agents led to the formation of 1-chloro(bromo)-1,ω-dihydropolyfluoro-1-alkenes in the E form. 1,2-Dehalogenation (1-Br, 2-F) of the 1-bromo-1,1,ω-trihydropolyfluoroalkanes by the action of zinc made it possible to obtain the 1,1,ω-trihydropolyfluoro-1-alkenes. 1,2-Dehalogenation (1-Cl, 2-F) of the 1-chloro-1,1,ω-trihydropolyfluoroalkanes does not take place under analogous conditions.
- Zapevalov, A. Yu.,Saloutina, L. V.,Kodess, M. I.,Kolenko, I. P.
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p. 1466 - 1472
(2007/10/02)
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