The reactivity of the hydrofluorocarbon 1,1,1,2-tetrafluoroethane (HFC-134a) and related compounds towards base attack. The generation and stability of the tetrafluoroethyl, trifluorovinyl and related anions

Authors
Burdon, J Coe, PL Haslock, IB Powell, RL
Citation
J. Burdon et al., The reactivity of the hydrofluorocarbon 1,1,1,2-tetrafluoroethane (HFC-134a) and related compounds towards base attack. The generation and stability of the tetrafluoroethyl, trifluorovinyl and related anions, J FLUORINE, 99(2), 1999, pp. 127-131
Citations number
21
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
JOURNAL OF FLUORINE CHEMISTRY
ISSN journal
00221139 → ACNP
Volume
99
Issue
2
Year of publication
1999
Pages
127 - 131
Database
ISI
SICI code
0022-1139(199911)99:2<127:TROTH1>2.0.ZU;2-7
Abstract
Trifluorovinyllithiun (CF2 = CFLi) has been successfully synthesised from 1 ,1,1,2-tetrafluoroethane using n-butyllithium at -78 degrees C in ether. Ot her bases (LDA, DBU, MeLi, t-BuLi, t-BuOK) were tried with varied success. The stability of the system was dependent on temperature, concentration and solvent system employed. 1-Chloro-2,2,2-trifluoroethane (133a) led to an a nalogous polyfluorovinyllithium, but 1,1,1-trifluoro- and 1,1,1,2,2,2-hexaf luoro- ethane did not. (C) 1999 Elsevier Science S.A. All rights reserved.