Phosphoramides: Synthesis, Spectroscopy, and X‐ray Crystallography

Abstract

A series of new phosphoramides with general formula RP(O)X 2 , where R = amino/pmethylphenoxy and X = amine, were synthesized and characterized by 1 H, 13 C, 31 P nuclear magnetic resonance (NMR), and infrared (IR) spectroscopy and elemental analysis. The 31 P{ 1 H}NMR spectra show that among compounds 7-9 containing 2-, 3-, and 4-aminopyridinyl moieties, respectively, the shielding order of the P atom decreases as 7 > 9 > 8.