Tetrahedron Letters p. 1095 - 1098 (1994)
Update date:2022-08-11
Topics:
Deacon, Glen B.
Forsyth, Craig M.
Sun, Junhui
Pentafluorobenzoic acid reacts with YbCp2(dme) to yield, after hydrolysis, 2,3,4,5-tetrafluorobenzoic acid.Conversion is near quantitative with activated magnesium as a coreductant and there is evidence for catalytic turnover in ytterbium on addition of a cyclopentadiene source.Reduction of 2,6-F2C6H3CO2H to o-FC6H4CO2H and of o-FC6H4CO2H to PhCO2H has also been achieved.
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