Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5220055 | Tetrahedron | 2012 | 8 Pages |
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-2,2â²-diylbis(phenylphosphinic acid), a phosphorus analogue of biphenyl-2,2â²-dicarboxylic acid. Preliminary studies of the metal-binding abilities of this O,O-chelating ligand towards a series of metal cations are included.
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Physical Sciences and Engineering
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Organic Chemistry
Authors
VÃctor Yañez RodrÃguez, Miguel Ángel del Águila, MarÃa José Iglesias, Fernando López Ortiz,