Ethyl 5-acetyl-2-amino-4-methylthiophene-3-carboxylate
نویسندگان
چکیده
منابع مشابه
Ethyl 5-acetyl-2-amino-4-methylthiophene-3-carboxylate
In the title compound, C(10)H(13)NO(3)S, prepared in a one-pot reaction, the mol-ecular conformation is stabilized by an intra-molecular N-H⋯O hydrogen bond. The packing is consolidated by further N-H⋯O links. The H atoms of two of the methyl groups are disordered over two sets of sites with equal occupancies.
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In the title compound, C16H17NO3S, a thio-phene derivative with amino phenyl, acetyl, methyl and ethyl carboxyl susbtituents attached to a central thio-phene ring, the phenyl and thio-phene rings form a dihedral angle of 36.92 (9) Å. The mol-ecular conformation is stabilized by an intra-molecular N-H⋯O hydrogen bond, which forms an S(6) ring motif.
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The reaction of ethyl 3-bromo-3-phenyl-propano-ate with pentane-2,4-dione, in the presence of palladium(II) acetate and triphenyl-phosphine, in dimethyl-formamide, unexpectedly gave the title product, C(16)H(20)O(4). The mol-ecule contains one chiral C atom but the crystal is racemic. In the crystal, neighboring mol-ecules form a chain along [100] through three weak C-H⋯O inter-actions. Further...
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In the mol-ecule of the title compound, C(11)H(12)ClN(3)O(3), the five membered ring adopts an envelope conformation. In the crystal structure, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into centrosymmetric dimers.
متن کاملCrystal structure of ethyl 5-acetyl-2-{[(dimethylamino)methylidene]amino}-4-methylthiophene-3-carboxylate
In the title thio-phene derivative, C13H18N2O3S, the dihedral angles between the thio-phene ring and the [(di-methyl-amino)-methyl-idene]amino side chain (r.m.s. deviation = 0.009 Å) and the -CO2 ester group are 3.01 (16) and 59.9 (3)°, respectively. In the crystal, inversion dimers linked by pairs of C-H⋯O hydrogen bonds generate R 2 (2)(16) loops. The dimers are linked by another weak C-H⋯O i...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2008
ISSN: 1600-5368
DOI: 10.1107/s1600536808014177