title: Reactivity of aminophosphonic acids. Oxidative dephosphonylation of 1-aminoalkylphosphonic acids by aqueous halogens.
abstract: The reactions of 1-aminoalkylphosphonic acids with bromine-water, chlorine-water and iodine-water were investigated. The formation of phosphoric(v) acid, as a result of a halogen-promoted cleavage of the Cα-P bond, accompanied by nitrogen release, was observed. The dephosphonylation of 1-aminoalkylphosphonic acids was found to occur quantitatively. In the reactions of 1-aminoalkylphosphonic acids with other halogen-water reagents investigated by (31)P NMR, scission of the Cα-P bond was also observed, the reaction rates being comparable for bromine and chlorine, but much slower for iodine.
authors.affiliation: Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, 120a Sienkiewicza, Lodz 90-363, Poland. drabowicz@gmail.pl frjordan@andromeda.rutgers.edu kudzin@iw.lodz.pl.
authors.forename: Józef
authors.initials: J
authors.lastname: Drabowicz
authors.forename: Frank
authors.initials: F
authors.lastname: Jordan
authors.forename: Marcin H
authors.initials: MH
authors.lastname: Kudzin
authors.forename: Zbigniew H
authors.initials: ZH
authors.lastname: Kudzin
authors.forename: Christian V
authors.initials: CV
authors.lastname: Stevens
authors.forename: Paweł
authors.initials: P
authors.lastname: Urbaniak