نتایج جستجو برای: benzotriazole

تعداد نتایج: 540  

2012
Ming-Jen Chen Ban-Hsin Wu Chen-Yu Li Chia-Her Lin Bao-Tsan Ko

In the title mol-ecule, C(33)H(48)N(4)O, the dihedral angle between the mean planes of the benzotriazole ring system [maximun deviation = 0.038 (2) Å] and the phenol ring is 16.6 (2)°. There is an intra-molecular O-H⋯N hydrogen bond between the phenol and benzotriazole groups.

2011
Andrei S Potapov Nina P Chernova Vladimir D Ogorodnikov Tatiana V Petrenko Andrei I Khlebnikov

Pyrazole and benzotriazole-containing thioethers, namely 1,5-bis(3,5-dimethylpyrazol-1-yl)-3-thiapentane, 1,8-bis(3,5-dimethylpyrazol-1-yl)-3,6-dithiaoctane and 1,3-bis(1,2,3-benzotriazol-1-yl)-2-thiapropane were prepared and fully characterized. Oxidation of the pyrazole-containing thioether by hydrogen peroxide proceeds selectively to provide a sulfoxide or sulfone, depending on the amount of...

2009
B. Ravindran Durai Nayagam Samuel Robinson Jebas J. P Edward Rajkumar Dieter Schollmeyer

In the title compound, C(17)H(19)N(3)O, the benzotriazole ring is essentially planar, with a maximum deviation of 0.0069 (15) Å. The mean plane of the benzotriazole ring forms a dihedral angle of 13.16 (4)° with the mean plane of the benzene ring. The crystal packing is stabilized by π-π stacking inter-actions, with a centroid-centroid distance of 3.8077 (12) Å, together with weak C-H⋯π inter-a...

2008
Su-Qing Wang Fang-Fang Jian Huan-Qiang Liu

THE TITLE COMPOUND [SYSTEMATIC NAME: 2-(1H-1,2,3-benzotriazol-1-ylmeth-yl)isoindole-1,3-dione], C(15)H(10)N(4)O(2), was prepared by the reaction of 1H-benzotriazole and 2-bromo-methyl-isoindole-1,3-dione. The benzotriazole and isoindole units are almost planar and make a dihedral angle of 70.2 (1)° (mean planes include C and N atoms). A weak C-H⋯O intra-molecular hydrogen bond involving a carbo...

2010
Chi-Huan Li Jing-Kai Su Chen-Yu Li Bao-Tsan Ko

In the title compound, C(20)H(16)N(4)O, the non-H atoms of the benzotriazole ring system and those of the methyl-phenol group are essentially coplanar, with an r.m.s. deviation of 0.004 (2) Å. The mean plane of these atoms forms a dihedral angle of 60.9 (2)° with the phenyl ring. There is an intra-molecular O-H⋯N hydrogen bond between the phenol and benzotriazole groups.

2013
Abdelkrim El-Ghayoury Leokadiya Zorina Mostafa Khouili

The title compound, C(21)H(18)N(6)O(2), was obtained as a by-product of a reaction between (E)-4-(4-dimethyl-amino-phenyl-azo)benzoic acid and 2-amino-4-(2-pyrid-yl)-6-(6-pyrid-yl)-1,3,5-triazine, which has a very low solubility, under peptidic coupling conditions, using THF as solvent. The condensation reaction occurred between 1-hy-droxy-benzotriazole and (E)-4-(4-dimethyl-amino-phenyl-azo)be...

2010
B. Ravindran Durai Nayagam Samuel Robinson Jebas J. Shakina R. Murugesan. Dieter Schollmeyer

In the title compound, C(16)H(17)N(3)O, the benzotriazole ring forms a dihedral angle of 77.25 (6)° with the phenyl ring. The benzotriazole ring is essentially planar with a maximum deviation of 0.012 (19) Å. Weak inter-molecular C-H⋯O hydrogen bonds form R(2) (2)(10) motifs. The crystal packing is consolidated by π-π inter-actions with centroid-centroid distances of 3.5994 (12) Å together with...

2012
Abdullah M. Asiri Nader E. Abo-Dya Muhammad Nadeem Arshad Khalid A. Alamry Muhammad Shafiq

In the title compound, C(15)H(13)N(3)O(2), the dihedral angle between the benzotriazole ring system (r.m.s. deviation = 0.0124 Å) and the benzene ring is 76.21 (3)°. The meth-oxy C atom deviates from its benzene ring plane by 0.063 (2)Å. In the crystal, inversion dimers linked by pairs of C-H⋯O hydrogen bonds generate R(2) (2)(12) loops.

2010
Lei Jin Cheng-He Zhou

In the title compound, C(17)H(17)N(3)O(3), the 3-methoxy-benzalde-hyde group and the benzotriazole fragment are connected through a flexible oxypropyl chain. The O-C-C-C torsion angle in the central link is -63.9 (2)°, while the plane of the benzene ring of the 3-methoxy-benzaldehyde substituent forms a dihedral angle of 56.4 (4)° with the benzotriazole plane.

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