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Synthesis of Dimethylphosphinoyl Substituted α-Aminoarylmethanephosphonates

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Synthesis of Dimethylphosphinoyl Substituted α -Aminoarylmethanephosphonates

Tsvetanka Cholakovaa, Yulian Zagraniarskya, Gerhard H¨ageleb, Tania Toshevac, Bojidarka Ivanovaa, Rosario Scopellitid, and Sabi Varbanovc

aUniversity of Sofia, Faculty of Chemistry, 1, J. Bourchier av., 1126 Sofia, Bulgaria

bInstitute of Inorganic and Structural Chemistry, Heinrich Heine University-D¨usseldorf, D-40225-D¨usseldorf, Germany

cInstitute of Polymers, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

dLaboratory of Lanthanide Supramolecular Chemistry, BCH 1402, Swiss Federal Institute of Technology, CH-1015 Lausanne, Switzerland

Reprint requests to Dr. T. Cholakova. E-mail: cholakova@chem.uni-sofia.bg Z. Naturforsch. 60b, 215 – 220 (2005); received July 27, 2004

New dimethylphosphinoyl-substitutedα-aminoarylmethanephosphonates 1a – f have been synthe- sized via addition of dimethyl or diethyl phosphites to Schiff bases and via Kabachnik-Fields re- action. The structure of the compounds was confirmed by elemental analysis, IR,1H and31P{1H} NMR spectroscopy, mass spectrometry and in two cases by X-ray diffraction.

Key words: Dimethylphosphinoyl-Substituted Phosphonates,α-Aminoarylmethanephosphonates, Kabachnik-Fields Reaction, Arylmethylene-1-dimethylphosphinoylmethaneamines

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