Natalia, Debby Nguyen, Dinh Quan Oh, Ji Hee Kim, Honggon Lee, Hyunjoo Kim, Hoon Sik 2024-01-20T23:04:50Z 2024-01-20T23:04:50Z 2021-09-03 2008-06 0022-1139 https://pubs.kist.re.kr/handle/201004/133447 Trifluoroethoxylation of hexafluoropropene with 2,2,2-trifluoroethanol (TFE) were conducted using an alkali metal fluoride catalyst to produce CF3CHFCF2OCH2CF3. KF exhibited the highest yield and selectivity of CF3CHFCF2OCH2CF3, whereas LiF and NaF were inactive for the tfifluoroethoxylation reaction. The same reaction also proceeded well in the presence of RbF or CsF, but yielded large amounts of olefinic and high molecular weight side products, implying that the size of alkali metal cation or the degree of MF dissociation plays an important role in determining the activity and the product composition. FT-IR and NMR experiments revealed that CsF interacts with TFE more strongly than KF through a hydrogen bonding. The experimental and spectroscopic results suggest that the degree of MF dissociation should be in the medium range for the selective production of CF3CHFCF2OCH2CF3 in high yield and selectivity. (C) 2008 Published by Elsevier B.V. English ELSEVIER SCIENCE SA FLUORINATED ETHERS OH RADICALS HYDROFLUOROETHERS CFC ALTERNATIVES CHEMISTRY ACID Fluoride-catalyzed hydroalkoxylation of hexafluoropropene with 2,2,2-trifluoroethanol Article 10.1016/j.jfluchem.2008.02.003 1 JOURNAL OF FLUORINE CHEMISTRY, v.129, no.6, pp.474 - 477 JOURNAL OF FLUORINE CHEMISTRY 129 6 474 477 scie scopus 000257604800002 2-s2.0-44649155044 Chemistry, Inorganic & Nuclear Chemistry, Organic Chemistry Article FLUORINATED ETHERS OH RADICALS HYDROFLUOROETHERS CFC ALTERNATIVES CHEMISTRY ACID hydrofluoroethers CFC alternatives hydroalkoxylation alkali metal fluoride