Abstract
A reaction of C-carboranylmethylmagnesium bromide with diethyl (N-benzyloxycarbonyl-2,2,2-trifluoroethaneimidoyl)phosphonate gave P- and N-protected aminophosphonic acid, an organophosphorus analog of alanine. The phosphonate was characterized by 1H, 19F, and 31P NMR spectroscopy. X-ray diffraction analysis of diethyl (1-benzyloxycarbonylamino-1-carboranyl-3,3,3-trifluoropropyl)phosphonate showed that the molecules form dimers in crystals due to the intermolecular hydrogen bond.
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