The reaction of an excess of lithium powder and a catalytic amount of DTBB with primary, secondary and tertiary fluoroalkanes in the presence of a substoichiometric amount of 1,2-bis(trimethylsilyl)benzene 1 afforded the corresponding alkanes resulting from a fluorine-hydrogen exchange. The method could be extended to non-geminal difluorides. The effect of the disilylated compound in the naphthalene-catalysed lithiation of fluorobenzene and benzyl fluoride was also studied.
Guijarro, David,Martínez, Pedro,Yus, Miguel
p. 1237 - 1244
(2007/10/03)
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