(E)-Ethyl 2-cyano-2-(thiazolidin-2-ylidene)acetate
نویسندگان
چکیده
منابع مشابه
(E)-Ethyl 2-cyano-2-(thiazolidin-2-ylidene)acetate
The title compound, C(8)H(10)N(2)O(2)S, was prepared by the reaction of 2-cyano-3,3-bis-(methyl-sulfan-yl)acrylate and 2-amino-ethanethiol at 350 K. The mol-ecular structure and packing are stabilized by N-H⋯O hydrogen-bond inter-actions. All the non-H atoms are nearly in the same plane with the maximum deviation being 0.08 Å.
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The C=C bond in the title compound, C(14)H(15)NO(4), is in an E configuration. With the exception of the methyl C atoms, the non-H atoms of the mol-ecule all lie approximately on a plane (r.m.s. deviation = 0.096 Å). π-π stacking is observed between parallel benzene rings of adjacent mol-ecules, the centroid-centroid distance being 3.7924 (8) Å.
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There are two independent mol-ecules in the asymmetric unit of the title compound, C(10)H(9)NO(3), in both of which, all non-H atoms except for the methyl C atom lie nearly in the same plane [maximum deviations = 0.094 (3) and 0.043 (2) Å]. In the crystal, each independent mol-ecules is linked by pairs of C-H⋯O inter-actions, generating inversion dimers with R(2) (2)(10) ring motifs.
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All the non-H atoms of the title compound, C(10)H(10)N(2)O(2), are nearly in the same plane with a maximum deviation of 0.093 (1) Å. In the crystal, adjacent mol-ecules are linked by pairs of inter-molecular N-H⋯O hydrogen bonds, generating inversion dimers with R(2) (2)(14) ring motifs.
متن کاملRegioselective synthesis of new 2-(E)-cyano(thiazolidin-2-ylidene)thiazoles.
Cyclocondensation of 2-[bis(methylthio)methylene]malononitrile (1) and cysteamine (2) afforded 2-(thiazolidin-2-ylidene)malononitrile (3). This compound on treatment with NaSH gave the corresponding thioamide derivative 4a in a regioselective manner on the basis of its single crystal X-ray diffraction analysis. Reaction of this compound with several alpha-bromocarbonyl compounds gave new 2-(E)-...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2008
ISSN: 1600-5368
DOI: 10.1107/s1600536808032984