V. Rodriguez, M. D. Aguila, M. Iglesias
Sep 9, 2012
Citations
0
Influential Citations
24
Citations
Journal
Tetrahedron
Abstract
Abstract Directed ortho lithiation of diphenylphosphinic acid and subsequent electrophilic trapping provides mono ortho -functionalized derivatives including enantiopure γ-aminophosphinic acids in moderate yields. Copper catalyzed coupling of the ortho anion leads to biphenyl-2,2′-diylbis(phenylphosphinic acid), a phosphorus analogue of biphenyl-2,2′-dicarboxylic acid. Preliminary studies of the metal-binding abilities of this O , O -chelating ligand towards a series of metal cations are included.