科研之友
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摘要
The title compound, C22H26N4, was prepared from p-dimethylaminopropiophenone in six steps. The molecule has no crystallographic symmetry. The dihedral angles between the pyrazine ring and the phenyl rings are 35.81 (6) and 37.11 (8)degrees. The dimethylamino groups are essentially planar (sum of the bond angles at N = 359.3 and 359.9 degrees) and nearly coplanar with the adjacent aromatic ring [dihedral angles = 5.54 (11) and 7.40 (3)degrees]. This effect and the short aniline C-N bonds can be rationalised in terms of charge transfer from the amino groups to the central pyrazine ring.
- 出版日期2011-6
