N. Raouafi, M. Freytag, P. Jones
Apr 1, 2005
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Structural Chemistry
Abstract
The preparation of N-[1-(N,N,N′,N′-tetramethylphosphoramidoyl)-1H-benzimidazol-2-yl]-proponimidic ethyl ester 2 has been achieved by the reaction of N-(1H-benzimidazol-2-yl)-proponimidic acid ethyl ester 1 with N,N,N′,N′-tetramethylchlorophosphoramide. The structure of compound 2 has been determined by X-ray diffraction. The results of (1H, 13C, 31P) NMR, IR, EI-MS spectral data are consistent with those obtained from the X-ray diffraction. The compound crystallizes in the triclinic system, following the EsZ conformation. In the crystal, there are two weak C3–H3⋅s1 and C15–H15⋅sO1 intermolecular hydrogen bonds.