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3-Chloro-6-{4-[3-(4-chlorophenoxy)propyl]piperazin-1-yl}pyridazine
Hongliang Wang,Junhai Xiao,Xian Zhang,Tiemin Sun
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810005337
Abstract: In the title compound, C17H20Cl2N4O, the piperazine ring adopts a chair conformation and the dihedral angle between the pyridazine ring and the benzene ring is 36.3 (1)°. In the crystal, weak C—H...O and C—H...(N,N) interactions help to establish the packing, which also features short intermolecular Cl...Cl contacts [3.331 (2) ].
3-Chloro-6-[4-(2-pyridyl)piperazin-1-yl]pyridazine  [cached]
Hakan Arslan,Semra Utku,Kenneth I. Hardcastle,Mehtap Gökçe
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536809050727
Abstract: In the title compound, C13H14ClN5, the piperazine ring adopts a chair conformation and the dihedral angle between the aromatic rings is 13.91 (7)°. The crystal structure is stabilized by weak intermolecular C—H...N hydrogen-bond interactions.
3-Chloro-6-[2-(cyclopentylidene)hydrazin-1-yl]pyridazine
Abdul Qayyum Ather,M. Nawaz Tahir,Misbahul Ain Khan,Muhammad Makshoof Athar
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811011342
Abstract: The asymmetric unit of the title compound, C9H11ClN4, contains two virtually planar molecules that differ in conformation about the bond connecting the hydrazine and pyridazine units. The 3-chloro-6-hydrazinylpyridazine and cyclopentane groups are oriented at dihedral angles of 4.5 (3) and 8.8 (4)° in the two molecules. In the crystal, the molecules form a one dimensional polymeric structure extending along the a axis via N—H...N hydrogen bonds. The crystal stucired was an inversion twin [ratio of the twin domains = 0.73 (9):0.27 (9)].
1,3-Phenylene bis{3-[2-chloro-4-(trifluoromethyl)phenoxy]benzoate}  [cached]
Hao Peng,Hongwu He
Acta Crystallographica Section E , 2012, DOI: 10.1107/s1600536812030826
Abstract: In the title compound, C34H18Cl2F6O6, one terminal trifluoromethyl and one entire 2-chloro-4-(trifluoromethyl)phenyl group are disordered with refined occupancy ratios of 0.715 (11):0.285 (11) and 0.517 (5):0.429 (5), respectively. In the crystal, weak intermolecular C—H...O hydrogen bonds link the molecules into ribbons propagating along the a-axis direction.
6-[5-Chloro-2-(trifluoromethyl)phenyl]-3-fluoro-2-methylpyridine  [PDF]
Karikere Ekanna Manojkumar,Swamy Sreenivasa,Mohan Revanasiddappa Nadigar,Tadimety Harikrishna
Molbank , 2013, DOI: 10.3390/M808
Abstract: Suzuki coupling reaction of 5-fluoro-6-methylpyridin-2-ylboronic acid (1) with 4-chloro-2-iodo-1-(trifluoromethyl)benzene (2) in the presence of dikis and K 2CO 3 produce C-C coupled new title compound 6-(5-chloro-2-(trifluoromethyl)phenyl)-3-fluoro-2-methylpyridine (3). The structure of the newly synthesized compound has been confirmed by IR, 1H-NMR, 13C-NMR, LC-MS and CHN analysis.
3-Chloro-6-[(E)-2-(1-phenylethylidene)hydrazinyl]pyridazine  [cached]
Abdul Qayyum Ather,M. Nawaz Tahir,Misbahul Ain Khan,Muhammad Makshoof Athar
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810024402
Abstract: Two independent molecules are present in the asymmetric unit of the title compound, C12H11ClN4, (Z′ = 2): the dihedral angles between the phenyl and pyridizine rings are 8.35 (10) and 37.64 (6)°. In the crystal, the two molecules form inversion dimers with R22(8) ring motifs through intermolecular N—H...N hydrogen bonds. The crystal structure is stabilized by π–π interactions between the pyridazine rings of symmetry-related molecules. In one of the independent molecules, the centroid–centroid separations are 3.6927 (13) and 3.7961 (13) , whereas in the other, the separations are 3.6909 (13) and 3.9059 (13) .
3-Chloro-6-[2-(propan-2-ylidene)hydrazinyl]pyridazine  [cached]
Abdul Qayyum Ather,M. Nawaz Tahir,Misbahul Ain Khan,Muhammad Makshoof Athar
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810034239
Abstract: In the title compound, C7H9ClN4, the 3-chloro-6-hydrazinylpyridazine unit is planar (r.m.s. deviation = 0.0219 ) and is oriented at a dihedral angle 4.66 (27)° with respect to the propan-2-ylidene group. In the crystal, the molecules are linked into non-planar dimers due to a crystallographic twofold rotation via N—H...N hydrogen bonds with R22(8) graph-set ring motifs.
3-Chloro-6-(3,5-dimethyl-1H-pyrazol-1-yl)pyridazine
Abdul Qayyum Ather,M. Nawaz Tahir,Misbahul Ain Khan,Muhammad Makshoof Athar
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810034756
Abstract: In the title compound, C9H9ClN4, the dihedral angle between the aromatic rings is 6.25 (9)°. The whole molecule is approximately planar (r.m.s. deviation = 0.070 ). In the crystal, π–π interactions between the centroids of the pyridazine rings [separation = 3.5904 (10) ] occur.
SYNTHESIS OF 2- (6 -CHLOROBENZOTHIAZOL-2’-YL AMINO) -4- (2-CHLORO-4-TRIFLUOROMETHYL PHENYL THIOUREIDO)-6-(SUBSTITUTED THIOUREIDO)-1,3,5-TRIAZINE AS ANTIFUNGAL AGENTS Synthese von 2 - (6-CHLOROBENZOTHIAZOL-2'-YL AMINO) -4 - (2-Chlor-4-Trifluormethylphenyl thioureido) -6 - (SUBSTITUIERTE thioureido) -1,3,5-Triazin als Antipilzmittel
Vineeta Sareen, Vineeta Khatri and Prakash Jain
Heterocyclic Letters , 2011, DOI: march 21, 2011.
Abstract: 2,4, 6-Trichloro-1,3,5-triazine has been reacted selectively with nucleophilic reagents, 2-amino - 6- chlorobenzothiazole I, and then the product II so obtained is reacted with 2-chloro -4- trifluoromethyl phenyl thiourea III to give IV and then IV is reacted with different substituted thioureas V to give 2-(6-chlorobenzothiazol - 2’-yl amino) -4- (2- chloro -4- trifluoromethyl phenyl thioureido) -6-(substituted thioureido)-1, 3, 5-triazine VI. These compounds are evaluated for their antifungal activity and shown promising results. The structure of all these compounds have been confirmed by IR, 1HNMR, mass spectral data and elemental analysis.
6-Chloro-3-(3-methylphenyl)-1,2,4-triazolo[4,3-b]pyridazine  [cached]
Jasmin Preis,Dieter Schollmeyer,Heiner Detert
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811035288
Abstract: The title compound, C12H9ClN4, was prepared from dichloropyridazine and tolyltetrazole in a nucleophilic biaryl coupling followed by thermal ring transformation. The molecule is essentially planar (r.m.s. deviation for all non-H atoms = 0.036 ) and an intramolecular C—H...N hydrogen bond occurs. In the crystal, the molecules form dimers connected via π–π interactions [centroid–centroid distance = 3.699 (2) ], which are further connected to neighbouring molecules via C—H—N bonds. The bond lengths in the pyridazine ring system indicate a strong localization of the double bonds and there is a weak C—Cl bond [1.732 (3) ].
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