
%0 Journal Article
%A Dickson, RS 
%A Sutcliffe, GD 
%T Fluorocarbon-aluminium compounds. V. Reactions of some fluorotoluene compounds with lithium tetrahydroaluminate
%J Australian Journal of Chemistry
%D 1973/01/01
%V 26
%N 1
%P 71-75
%K 
%R https://doi.org/10.1071/CH9730071
%U https://www.publish.csiro.au/paper/CH9730071 
%X In tetrahydrofuran at -45° and in diethyl ether at 20°, the reaction of &#945;-bromo- 2,3,4,5,6-pentafluorotoluene with lithium tetrahydroaluminate yields 2,3,4,5,6-penta-fluorotoluene. In tetrahydrofuran at 20°, the same reaction occurs initially but the pentafluorotoluene then reacts further with LiAlH4. LiAlH4 attacks the para-fluorine atom of 2,3,4,5,6- pentafluorotoluene to form 2,3,5,6-tetrafluorotoluene and the fluoro- carbon-alane complex LiAl(C6F4CH3)H2F. The reaction between LiAlH4 and C6F5CH3 is complete after 0.5 hr at 65°. In turn, 2,3,5,6- tetrafluorotoluene reacts with LiAlH4 in refluxing tetrahydrofuran to form the fluorocarbon-alane complexes LiAl(C6F4CH3)nH4-n, n = 1-3.     The fluorocarbon-aluminium compounds have not been isolated from solution but were characterized by quantitative determination of the products of hydrolysis and by 1H and 19F N.M.R. spectroscopy. 
