88639-56-9Relevant articles and documents
REACTION OF PHOSPHORUS PENTACHLORIDE WITH PERHALO CARBONYL-CONTAINING COMPOUNDS
Chen, Loomis S.,Chen, Grace J.
, p. 371 - 388 (1989)
The reaction between PCl5 and the carbonyl oxygen in a variety of perfluoro compounds containing the carbonyl functional group, e.g.RfC(O)R'f, RfC(O)X or XC(O)RfC(O)X, where X = Cl, F, OH, NH2, and ONH4 has led to a convenient synthesis procedure for fluorochlorocompounds.Monoketones, e.g.RfC(O)R'f, yield RfCCl2R'f compounds, while the diketones, e.g.RfC(O)(CF2)nC(O)R'f, also react to yield the fluorochloro compounds.When n = 3, RfCCl2(CF2)3CCl2R'f is produced in quite high yields (65 percent); however, when n = 2, the principal product is a cyclic fluorodichloroether compound while the fluorotetrachloro compound is the minor product.The RfC(O)X and XC(O)RfC(O)X compounds produce RfCCl3 and Cl3CRfCCl3 respectively in high yields.Reaction temperature and pressure are important factors for high yield synthesis.