N-(2,5-Dimethoxyphenyl)-6-nitroquinazolin-4-amine
نویسندگان
چکیده
In the title mol-ecule, C16H14N4O4, the quinazoline ring is substanti-ally planar (r.m.s. deviation = 0.0129 Å) and forms a dihedral angle of 2.73 (8)° with the benzene ring. The conformation of the mol-ecule is stabilized by an intra-molecular C-H⋯N hydrogen bond. In the crystal, mol-ecules are linked into chains running parallel to the b axis by C-H⋯O hydrogen bonds. In addition, π-π stacking is observed between dimethoxy-substituted and nitro-substituted benzene rings, with centroid-centroid distances in the range 3.6438 (10)-3.7148 (10) Å.
منابع مشابه
2-Amino-4-(4-hydroxy-3,5-dimethoxyphenyl)-6-phenylnicotinonitrile
In the title compound, C(20)H(17)N(3)O(3), the dihedral angles between the central pyridine ring and the two terminal rings are 15.07 (3) and 43.24 (3)°. The dihedral angle between the two terminal rings is 37.49 (4)° In the crystal, inter-molecular amine N-H⋯N(nitrile) hydrogen-bonding inter-actions form inversion dimers, which are linked into chains through amine N-H⋯O(meth-oxy) hydrogen bonds.
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In the title compound, C(17)H(20)N(2)O(4), the 2,5-dimeth-oxy-phenyl unit is almost planar, with an r.m.s. deviation of 0.015 Å. The dihedral angle between the 2,5-dimeth-oxy-phenyl ring and the urea plane is 20.95 (8)°. The H atoms of the urea NH groups are positioned syn to each other. The mol-ecular structure is stabilized by a short intra-molecular N-H⋯O hydrogen bond. In the crystal, inter...
متن کاملN-(2,5-Dimethoxyphenyl)-N′-[4-(2-hydroxyethyl)phenyl]urea
In the title compound, C(17)H(20)N(2)O(4), the 2,5-dimeth-oxy-phenyl unit is essentially planar, with an r.m.s. deviation of 0.015 Å. The dihedral angle between the benzene rings is 43.66 (4)°. The mol-ecular structure is stabilized by a short intra-molecular N-H⋯O hydrogen bond. In the crystal, inter-molecular N-H⋯O and O-H⋯O hydrogen bonds link the mol-ecules into a three-dimensional network.
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متن کاملN-(4-Chlorobutanoyl)-N′-(2,5-dimethoxyphenyl)thiourea
The title mol-ecule, C(13)H(17)ClN(2)O(3)S, shows an anti and syn disposition of the butanoyl and 2,5-dimethoxyphenyl groups with respect to the thione and is stabilized by intra-molecular N-H⋯O and weak C-H⋯S hydrogen bonds. In the crystal, inter-molecular N-H⋯S hydrogen bonds link the mol-ecules into centrosymmetric dimers. The crystal structure is stabilized by weak C-H⋯O and C-H⋯S contacts.
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عنوان ژورنال:
دوره 69 شماره
صفحات -
تاریخ انتشار 2013