(2E)-2-Benzylidene-4-ethyl-3,4-dihydronaphthalen-1(2H)-one
نویسندگان
چکیده
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.
منابع مشابه
(2E)-2-Benzylidene-9-phenyl-3,4-dihydroacridin-1(2H)-one
In the title compound, C26H19NO, the plane of the aromatic heterocycle makes a dihedral angle of 75.22 (4)° with that of the attached phenyl ring. In the crystal, mol-ecules are connected by C-H⋯O inter-actions, generating R 2 (2)(12) dimers. These dimers are further connected by C-H⋯π inter-actions, linking the mol-ecules into chains running along the a-axis direction.
متن کامل(2E)-4-tert-Butyl-2-(4-methoxybenzylidene)-3,4-dihydronaphthalen-1(2H)-one
In the title compound C(22)H(24)O(2), the exocyclic C=C double bond is in an E configuration and the tert-butyl group is in an axial position on the cyclo-hexa-none ring. The cyclo-hexa-none ring in the dihydro-naphthalene fused-ring system adopts a half-chair conformation in both independent two mol-ecules in the asymetric unit. The benzene ring system is oriented angles of 43.97 (12) and 39.2...
متن کامل2-(4-Methoxybenzylidene)-4,4-dimethyl-3,4-dihydronaphthalen-1(2H)-one
The title compound C(20)H(20)O(2), has the exocyclic C=C double bond in an E configuration. The two benzene rings form a dihedral angle of 72.92 (6)°.
متن کامل(1E)-6-Methoxy-3,4-dihydronaphthalen-1(2H)-one oxime
In the crystal structure of the title compound, C(11)H(13)NO(2), the mol-ecules are paired into centrosymmetric dimers via inter-molecular O-H⋯N hydrogen bonds.
متن کامل7-Methoxy-3,4-dihydronaphthalen-1(2H)-one
In the title compound, C(11)H(12)O(2), the six-membered ketone ring fused to the 7-meth-oxy benzene ring adopts a slightly distorted envelope configuration with the central methyl-ene C atom being the flap. The crystal packing is stabilized by weak inter-molecular C-H⋯O and C-H⋯π inter-actions, which lead to supra-molecular layers in the bc plane.
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