Stereochemistry of Ethyl a -Cyano-P-methylcinnam ates
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Thermochromic Excited – State Dipole Moment Measurements of p-Cyano-N,N-diethylaniline in Ethyl Acetate
The effect of temperature on absorption and fluorescence spectra of p-cyano-N,N-diethylaniline (CDEA) in ethyl acetate has been studied for temperatures ranging from 293 K to 418 K. At T = 293 K two fluorescence bands are observed: long wavelength emission (LE) and short wavelength emission (SE) of much lower intensity compared to the first one. With temperature increase (which leads to the dec...
متن کاملEthyl N-(3-cyano-1H-indol-2-yl)formimidate
In the title compound, C12H11N3O, the C=N imino bond is in an E conformation. In the crystal, adjacent mol-ecules are linked by N-H⋯Ncyano hydrogen bonds, forming a chain running along [110].
متن کامل(E)-Ethyl 2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)acrylate
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).
متن کاملEthyl (E)-3-anilino-2-cyano-3-mercaptoacrylate
In the title compound, C(12)H(12)N(2)O(2)S, there are S-H⋯N and N-H⋯O hydrogen-bond inter-actions. The N-H⋯O hydrogen bond is bifurcated, with the hydrogen being simultaneously donated to two equivalent O atoms, forming one intra- and one inter-molecular N-H⋯O bond with an R(1) (2)(4) motif. The motif of the S-H⋯N hydrogen bond is R(2) (2)(12).
متن کامل(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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ژورنال
عنوان ژورنال: Nippon kagaku zassi
سال: 1968
ISSN: 0369-5387,2185-0917
DOI: 10.1246/nikkashi1948.89.10_958