4-(3-Fluoro-4-methylanilino)-2-methylidene-4-oxobutanoic acid
نویسندگان
چکیده
The title compound, C12H12FNO3, crystallizes with two independent mol-ecules (A and B) in the asymmetric unit. The dihedral angle between the mean planes of the 3-fluoro-4-methyl-phenyl ring and the oxo-amine group is 25.7 (7)° in mol-ecule A and 71.3 (7)° in mol-ecule B, while the mean plane of the 2-methyl-idene-4-oxo-butanoic acid group is twisted by 76.2 (1)° from that of the oxo-amine group in mol-ecule A and by 76.2 (4)° in mol-ecule B. In the crystal, N-H⋯O and O-H⋯O hydrogen bonds [the latter forming an R 2 (2)(8) graph-set motif] link the mol-ecules into a two-dimensional network parallel to the ac plane.
منابع مشابه
4-[(4-Acetylphenyl)amino]-2-methylidene-4-oxobutanoic acid
In the title compound, C13H13NO4, the N-C(=O) bond length of 1.354 (2) Å is indicative of amide-type resonance. The dihedral angle between the mean planes of the benzene ring and oxo-amine group is 36.4 (3)°, while the mean plane of the 2-methyl-idene group is inclined by 84.2 (01)° from that of the oxo-amine group. In the crystal, classical O-H⋯O hydrogen bonds formed by the carb-oxy-lic acid ...
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عنوان ژورنال:
دوره 69 شماره
صفحات -
تاریخ انتشار 2013