G. Deacon, C. Forsyth, Jiazeng Sun
Feb 14, 1994
Citations
0
Influential Citations
28
Citations
Journal
Tetrahedron Letters
Abstract
Abstract Pentafluorobenzoic acid reacts with YbCp 2 (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-F 2 C 6 H 3 CO 2 H to o -FC 6 H 4 CO 2 H and of o -FC 6 H 4 CO 2 H to PhCO 2 H has also been achieved.