Dimethyl esters of amino-arylmethyl phosphonic acids containing a cyclohexyl moiety have been prepared in good yields. All compounds are white crystalline powders very soluble in low boiling point organic solvents. Characterization by H-1-NMR techniques indicates that ortho substituents shift downfield the CH resonance, whereas ortho-carboxy groups, through hydrogen bonding with the NH group, yield a cyclic structure responsible of the dramatic downfield shift of the NH resonance.
Titolo: | Dimethyl esters of 1-amino-2-arylmethyl cyclohexyl phosphonic acids. Synthesis and NMR characterization |
Autori interni: | |
Data di pubblicazione: | 1995 |
Rivista: | |
Handle: | http://hdl.handle.net/20.500.11769/69065 |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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