(E)-3-(4-Chlorophenyl)-3-[3-(4-chlorophenyl)-1H-pyrazol-1-yl]prop-2-enal
نویسندگان
چکیده
In the title compound, C(18)H(12)Cl(2)N(2)O, the pyrazole ring is almost planar [r.m.s. deviation = 0.002 Å] while the two chloro-phenyl rings are twisted out from the plane of the pyrazole ring, making dihedral angles of 5.3 (1) and 65.34 (4)°. In the crystal, centrosymmetric R(2) (2)(24) dimers are formed about crystallographic inversion centres through a pair of C-H⋯Cl inter-actions. These dimers are further linked through a C-H⋯O hydrogen bond, forming a C(8) chain extending along the a axis. C-H⋯π inter-actions are also observed.
منابع مشابه
2-(4-Chlorophenyl)-4-[1-(4-chlorophenyl)-3-methyl-1H-pyrazol-5-yl]-5-methyl-1H-pyrazol-3(2H)-one
The title compound, C(20)H(16)Cl(2)N(4)O, has two mol-ecules in the asymmetric unit. The two five-membered rings form a dihedral angle of 54.2 (3)° in one mol-ecule and 56.8 (3)° in the other independent mol-ecule. The amino group of the dihydro-pyrazolone unit of one mol-ecule acts as a hydrogen-bond donor to the carbonyl group of the dihydro-pyrazolone system of the other mol-ecule. The resul...
متن کاملEthyl 2-{[5-(3-chlorophenyl)-1-phenyl-1H-pyrazol-3-yl]oxy}acetate
The title compound, C(19)H(17)ClN(2)O(3), was synthesized by the reaction of 5-(3-chloro-phen-yl)-1-phenyl-1H-pyrazol-3-ol and ethyl 2-bromo-acetate. In the crystal, the C- and N-linked benzene rings are twisted by 45.15 (3) and 53.55 (3)°, respectively, from the plane of the bridging 1H-pyrazole ring.
متن کامل(Z)-Ethyl 3-[bis(4-chloro-3-ethyl-1-methyl-1H-pyrazol-5-ylcarbonyl)amino]-3-(4-chlorophenyl)-2-cyanopropanoate
The title compound, C(26)H(25)Cl(3)N(6)O(4), was prepared by the reaction of (Z)-ethyl 3-amino-3-(4-chloro-phen-yl)-2-cyano-acrylate and 4-chloro-3-ethyl-1-methyl-1H-pyrazole-5-carbonyl chloride. The dihedral angles between the chloro-benzene and the two pyrazole rings are 59.8 (2) and 33.3 (2)°. The two pyrazole rings are oriented to each other at a dihedral angle of 84.7 (2)°. The crystal pac...
متن کامل2-Chloro-N-[1-(4-chlorophenyl)-3-cyano-1H-pyrazol-5-yl]acetamide
The title compound, C(12)H(8)Cl(2)N(4)O, was synthesized by the reaction of 5-amino-1-(4-chloro-phen-yl)-1H-pyrazole-3-carbonitrile and 2-chloro-acetyl chloride. The dihedral angle between the pyrazole and benzene rings is 30.7 (3)°. In the crystal structure, strong N-H⋯O hydrogen bonds link the mol-ecules into chains along [001]. C-H⋯N hydrogen bonds are also present.
متن کامل(E)-3-(9-Anthryl)-1-(4-chlorophenyl)-2-(1H-1,2,4-triazol-1-yl)prop-2-en-1-one
In the title compound, C(25)H(16)ClN(3)O, the anthryl and chloro-phenyl substituents are on opposite sides of the triazole ring. The anthryl and benzene mean planes are aligned at 83.35 (2) and 89.09 (2)°, respectively, with respect to the triazole ring.
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عنوان ژورنال:
دوره 66 شماره
صفحات -
تاریخ انتشار 2010