Arylidene bis-(N-diethylphosphonoacetamides) have been prepered in good yield. All compounds are white crystalline powders soluble in low boiling point organic solvents. Characterization by H-1-NMR technique indicates that the methyne proton appears in the aromatic region of the spectrum and the two methylene diastereotopic protons (CH2P) give rise to a complex ABX system due to the coupling with the phosphorus atom, thus this pattern is very diagnostic for this tipe of compounds. The heteronuclear coupling was also investigated by H-1{P-31}-NMR spectroscopy.

Arylidene bis-(N-diethylphosphonoacetamides) have been prepered in good yield. All compounds are white crystalline powders soluble in low boiling point organic solvents. Characterization by H-1-NMR technique indicates that the methyne proton appears in the aromatic region of the spectrum and the two methylene diastereotopic protons (CH2P) give rise to a complex ABX system due to the coupling with the phosphorus atom, thus this pattern is very diagnostic for this tipe of compounds. The heteronuclear coupling was also investigated by H-1{P-31}-NMR spectroscopy.

Arylidene bis-(N-diethyl phosphonoacetamides). Synthesis and NMR characterization

CONSIGLIO, GIUSEPPE;FAILLA, Salvatore;
2000-01-01

Abstract

Arylidene bis-(N-diethylphosphonoacetamides) have been prepered in good yield. All compounds are white crystalline powders soluble in low boiling point organic solvents. Characterization by H-1-NMR technique indicates that the methyne proton appears in the aromatic region of the spectrum and the two methylene diastereotopic protons (CH2P) give rise to a complex ABX system due to the coupling with the phosphorus atom, thus this pattern is very diagnostic for this tipe of compounds. The heteronuclear coupling was also investigated by H-1{P-31}-NMR spectroscopy.
2000
Arylidene bis-(N-diethylphosphonoacetamides) have been prepered in good yield. All compounds are white crystalline powders soluble in low boiling point organic solvents. Characterization by H-1-NMR technique indicates that the methyne proton appears in the aromatic region of the spectrum and the two methylene diastereotopic protons (CH2P) give rise to a complex ABX system due to the coupling with the phosphorus atom, thus this pattern is very diagnostic for this tipe of compounds. The heteronuclear coupling was also investigated by H-1{P-31}-NMR spectroscopy.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11769/30415
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