منابع مشابه
Ethyl (2E)-2-(hydroxyimino)propanoate
The mol-ecule of the title compound, C(5)H(9)NO(3), is essentially planar [the maximum deviation for a non-H atom from the mean plane is 0.021 (3) Å] due to the π-conjugation of the hydroxy-imino and carbonyl groups, which are trans to each other; ab initio calculations in vacuo at the DFT (B3LYP/6-311G**++) level of theory confirmed that E conformer is indeed the lowest in energy. The packing ...
متن کاملEthyl (2E)-2-cyano-3-(4-methoxyphenyl)acrylate
In the title compound, C13H13NO3, the conformation across the C=C bond is synperiplanar, the torsion angle of the segment C(ring)-C=C-C(N) being 3.2 (5)°. In the crystal, mol-ecules are linked into inversion dimers, arranged in a zigzag pattern, through two C-H⋯O inter-actions generating R 2 (2)(10) and R 2 (2)(14) motifs. These dimers are arranged in a zigzag pattern in the crystal structure. ...
متن کاملEthyl (2E,4Z)-5-diethylamino-2-(phenylsulfonyl)penta-2,4-dienoate
In the title compound, C(17)H(23)NO(4)S, the penta-diene group adopts a planar conformation, with an r.m.s. deviation of 0.0410 (14) Å. The phenyl ring makes a dihedral angle of 85.73 (11)° with the penta-diene group, while the penta-diene group makes dihedral angles of 11.38 (11) and 14.08 (10)°, respectively, with the amino and ester groups. In the crystal, molecules are linked via pairs of C...
متن کامل(2E)-2-Benzylidene-4-ethyl-3,4-dihydronaphthalen-1(2H)-one
In the title compound, C(19)H(18)O, the exocyclic C=C double bond has an E configuration. The ethyl substituent on the cyclo-hexa-none ring is in an axial position. The cyclo-hexa-none ring adopts a half-chair conformation, presumably due to conjugation in the benzene ring.
متن کاملEthyl (2E)-2-cyano-3-(1-methyl-1H-pyrrol-2-yl)prop-2-enoate
The 15 non-H atoms of the title compound, C(11)H(12)N(2)O(2), are approximately coplanar, the r.m.s. deviation being 0.145 Å. The major deviation from coplanarity is seen in a twist between the ethene (E configuration) and pyrrole rings [C-C-N-C torsion angle = -8.26 (18)°]. The carbonyl O and cyano N atoms are syn to each other. In the crystal, supra-molecular linear tapes linked by C-H⋯O and ...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2010
ISSN: 1600-5368
DOI: 10.1107/s1600536810009438