1-(4-Bromo-3-chlorophenyl)-3-methoxy-3-methylurea (chlorbromuron)
نویسندگان
چکیده
In the title urea-based herbicide, C(9)H(10)BrClN(2)O(2), there exist multiple inter- and intra-molecular inter-actions. Most notably, the intra-molecular hydrogen bond between the urea carbonyl O atom and an aromatic H atom affects the planarity and torsion angles of the mol-ecule by restricting rotations about the Ar-secondary amine N and the secondary amine N and the carbonyl C. The two N atoms in the urea fragment are in different environments. One is planar; the other, pseudo-C(3v). It is likely that the different nitro-gen-atom geometries and the restricted rotations within the mol-ecule impact the bioactivity of chlorbromuron.
منابع مشابه
(2E)-3-(3-Bromo-4-methoxyphenyl)-1-(4,4′′-difluoro-5′-methoxy-1,1′:3′,1′′-terphenyl-4′-yl)prop-2-en-1-one
In the title compound, C(29)H(21)BrF(2)O(3), the dihedral angles between the central anisole ring and the pendant fluoro-benzene rings are 48.86 (19) and 31.89 (18)°. The dihedral angle between the anisole ring and the 1-bromo-2-meth-oxy-benzene ring linked via the enone bridge is 82.95 (17)°. In the crystal, C-H⋯O hydrogen bonds link the mol-ecules into C(11) chains propagating along [010].
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In the title compound, C(33)H(32)ClNO(2), the benzene ring is oriented at dihedral angles of 6.23 (5) and 66.44 (5)° with respect to the two naphthalene ring systems. An intra-molecular O-H⋯N hydrogen bond between the hydr-oxy H atom and the amine N atom generates an S(6) ring.
متن کامل(2E)-3-(4-Bromophenyl)-1-(3-chlorophenyl)prop-2-en-1-one
In the title compound, C(15)H(10)BrClO, the dihedral angle between mean planes of the bromo- and chloro-substituted benzene rings is 46.2 (2)° compared to 45.20 (9)° in the structure with the Cl substituent in the meta position of the aromatic ring. The dihedral angles between the mean plane of the prop-2-ene-1-one group and the mean planes of the 4-bromo-phenyl and 3-chloro-phenyl rings are 28...
متن کاملN-(4-Chlorophenyl)-4-methoxy-3-(propanamido)benzamide cyclohexane hemisolvate
The title compound, C(17)H(17)ClN(2)O(3)·0.5C(6)H(12), was prepared by the condensation reaction of 4-meth-oxy-3-(propanamido)-benzoic acid with 4-chloro-aniline. The Cl atom, the propionyl CH(3) group and the cyclo-hexyl CH(2) group are disordered over two sets of sites of equal occupancy in both mol-ecules. The cyclo-hexane solvent mol-ecule is disordered over two orientations which were mode...
متن کامل(E)-3-(2-Chlorophenyl)-1-(4,4′′-difluoro-5′-methoxy-1,1′:3′,1′′-terphenyl-4′-yl)prop-2-en-1-one
The title compound, C(28)H(19)ClF(2)O(2), is a polysubstituted terphenyl derivative bearing a Michael system in which the C=C double bond has an E conformation. In the crystal, C-H⋯Cl and C-H⋯O contacts connect the mol-ecules into layers lying perpendicular to the a axis. The shortest inter-centroid distance between symmetry-related 4-fluoro-phenyl groups is 3.7547 (16) Å.
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