4-({(Z)-5-[(Z)-3-Ethoxy-4-hydroxybenzylidene]-3-methyl-4-oxo-1,3-thiazolidin-2-ylidene}amino)benzoic acid dimethylformamide monosolvate
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چکیده
The mol-ecular structure of the title compound, C20H18N2O5S·C3H7NO, represents an essentially planar 5-benzyl-idene-thia-zolidine moiety (r.m.s. deviation from planarity without ring substituents = 0.095 Å) to which the 4-amino-benzoic acid fragment is inclined at 76.23 (1)°. In the crystal, the benzoic acid mol-ecules are arranged in layers parallel to [001] which are built up from inversion dimers held together by head-to-tail phenol-carb-oxy O-H⋯O hydrogen bonds and head-to-tail π-π stacking inter-actions between the 5-benzyl-idene-thia-zolidine moieties (ring centroid distance = 3.579 Å). These layers are separated by the dimethyl-formamide solvent mol-ecules which are firmly anchored via a short O-H⋯O hydrogen bond [O⋯O = 2.5529 (10) Å] donated by the -COOH group.
منابع مشابه
Crystal structure of (Z)-2-hydroxy-4-methyl-N′-(4-oxo-1,3-thiazolidin-2-ylidene)benzohydrazide trihydrate
In the title compound, C11H11N3O3S·3H2O, the non-H atoms of the main mol-ecule are approximately planar, with an r.m.s. deviation of 0.030 Å. There is a bifurcated intra-molecular N-H⋯(O,S) hydrogen bond present forming S(6) and S(5) ring motifs. In the crystal, O-H⋯O and N-H⋯O hydrogen bonds link the molecules into a three-dimensional network.
متن کاملN-[(Z)-3-(4-Chlorobenzoyl)-1,3-thiazolidin-2-ylidene]cyanamide
The title compound, C(11)H(8)ClN(3)OS, was prepared by the reaction of N-cyano-imino-thia-zolidine, 2-amino-ethanethiol and triethyl-amine at 350 K. The dihedral angle between the two rings is 62.5 (8)°.
متن کاملCrystal structure of (2Z)-2-{(5Z)-5-[3-fluoro-2-(4-phenylpiperidin-1-yl)benzylidene]-4-oxo-3-(p-tolyl)-1,3-thiazolidin-2-ylidene}-N-(p-tolyl)ethanethioamide dimethyl sulfoxide monosolvate
The title compound, C37H34FN3OS2·C2H6OS, was obtained by the Knoevenagel condensation. The thia-zolidine ring is essentially planar (r.m.s. deviation = 0.025 Å) and forms dihedral angles of 4.2 (3), 68.60 (14) and 39.57 (15)° with the attached thio-amide group, p-tolyl group benzene ring and fluoro-substituted benzene ring, respectively. The exocyclic double bonds are in a Z configuration. In t...
متن کامل(Z)-N-{3-[(2-Chloro-1,3-thiazol-5-yl)methyl]-1,3-thiazolidin-2-ylidene}cyanamide
In the title compound, C(8)H(7)ClN(4)S(2), the thia-zole ring is essentially planar [r.m.s. deviation = 0.0011 (2) Å] and conformation of the thia-zolidine ring is twisted on the C-C bond. The C=N bond has a Z configuration.
متن کامل(Z)-2-(1,3-Thiazolidin-2-ylidene)cyanamide
In the title compound, C(4)H(5)N(3)S, the tdihydrothiazole ring is almost planar, the maximum and minimum deviations being 0.188 (2) Å and 0.042 (3) Å, respectively. The crystal structure involves intermolecular N-H⋯N hydrogen bonds.
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