(E)-Ethyl 2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)acrylate
نویسندگان
چکیده
The title compound, C(12)H(10)N(2)O(6), was synthesized via a Knoevenagel condensation and crystallized from ethanol. In the crystal, strong classical inter-molecular O-H⋯O hydrogen bonds and weak C-H⋯N contacts link the mol-ecules into ribbons extending along [010]. Intra-molecular O-H⋯O and C-H⋯N contacts support the planar conformation of the mol-ecules (mean deivation 0.0270 Å).
منابع مشابه
(E)-2-{N-Ethyl-4-[(4-nitrophenyl)diazenyl]anilino}ethyl acrylate
In the mol-ecule of the title compound, C(19)H(20)N(4)O(4), the rings are almost coplanar, forming a dihedral angle of 0.76 (3)°. In the crystal structure, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules.
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The title compound, C(19)H(13)ClF(2)N(2)O(3), was prepared by the reaction of (Z)-ethyl 3-amino-3-(4-chloro-phen-yl)-2-cyano-acrylate and 2,6-difluoro-benzoyl chloride. The dihedral angle between the chloro-benzene and fluoro-benzene rings is 37.0 (1)°. The ethyl group is disordered over two positions [occupancies = 0.52 (2):0.48 (2)]. In addition to intra-molecular N-H⋯O and N-H⋯F hydrogen bon...
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The title compound, C(16)H(17)N(3)O(4), was prepared by the reaction of 5-nitro-2-(pyrrolidin-1-yl)benzaldehyde and ethyl cyano-acetate. The mol-ecular structure adopts an E conformation with respect to the C=C double bond. The five-membered ring has a half-chair conformation, with puckering parameters Q(2)= 0.399 (2) Å and ϕ = 93.1 (3)°. In the crystal, inversion dimers , linked by pairs of C-...
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متن کامل(Z)-Ethyl 3-(4-chlorobenzamido)-2-cyano-3-(4-fluorophenyl)acrylate
The title compound, C(19)H(14)ClFN(2)O(3), was prepared by the reaction of ethyl (Z)-3-amino-2-cyano-3-(4-fluoro-phen-yl)acrylate and 4-chloro-benzoyl chloride. The dihedral angle between the chloro-benzene and fluoro-benzene rings is 66.18 (19)°. In addition to an intra-molecular N-H⋯O hydrogen bond, there are inter-molecular C-H⋯O and C-H⋯N hydrogen bonding inter-actions, which stabilize the ...
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