DIETHYL 2,3-DIPHENYLQUINOXALIN-6-YLAMINOMETHYLENE)MALONATE

Authors
LOKAJ J KETTMANN V VRABEL V ILAVSKY D MILATA V
Citation
J. Lokaj et al., DIETHYL 2,3-DIPHENYLQUINOXALIN-6-YLAMINOMETHYLENE)MALONATE, Acta crystallographica. Section C, Crystal structure communications, 50, 1994, pp. 1784-1786
Citations number
5
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
50
Year of publication
1994
Part
11
Pages
1784 - 1786
Database
ISI
SICI code
0108-2701(1994)50:<1784:D2>2.0.ZU;2-C
Abstract
The substituted aminoethylenic group in the title compound, C28H25N3O4 , is approximately coplanar with the heterocyclic plane [dihedral angl e 16(2)degrees] and the alpha-C atom C(23), is disordered between two well defined sites. This disorder originates from a flipping of the am inoethylenic moiety around the C(6)-N(5) bond. The phenyl rings at C(2 ) and C(3) are twisted out of the plane of the quinoxaline ring system by 46.7 (8) and 38.0 (9)degrees, respectively.