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13C NMR studies of some dialkyl alpha-anilinobenzylphosphonates and dialkyl alpha-(2-hydroxybenzyl)phosphonates

The C-13 NMR spectra of a series of dialkyl alpha-anilinobenzylphosphonates and dialkyl alpha-anilino-(2-hydroxybenzyl)phosphonates were measured. The assignment of the spectra was performed using a combination of P-31-C-13 and C-13-H-1 coupling constants and substituent-induced chemical shifts. Long-range phosphorus-carbon couplings up to five bonds were observed.

phosphonate ; anilinobenzylphosphonate ; 13C NMR

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