نتایج جستجو برای: Benzotriazole
تعداد نتایج: 540 فیلتر نتایج به سال:
Azole heterocyclic compounds exhibit wide range of medicinal applications in the treatment of various types of diseases [1]. Especially, triazole derivatives as medicinal drugs have been playing important roles in medicinal chemistry [2-4], and a lot of triazole analogs including imidazole [5], thiazole [6], carbazole [7,8], oxazole [9] and benzimidazole [10,11], etc. have also been found to be...
The environmental contamination and fate of benzotriazole UV stabilizers (BZTs) have received increasing attention due to their large production volume and wide usage in various consumer and industrial products. In the present work, 60 municipal sewage sludge samples from wastewater treatment plants (WWTPs) in 33 cities in China were collected to investigate the occurrence and distribution of 9...
Thermal properties of N-carbamoyl benzotriazole derivatives and N,N',N''-tribenzyloxyisocyanuric acid were investigated using thermogravimetric analysis and differential scanning calorimetry. The results revealed a difference between structural analogs of N-carbamoyl benzotriazole derivatives. They seem to be in agreement with the previously proposed formation of N,N',N''-tribenzyloxyisocyanuri...
Benzotriazole and methyl benzotriazole were studied in soil, water, and wood. As reported by various authors, benzotriazole is highly stable in soil or water. It was also found to be a potent inhibitor of plant growth, killing several species at levels of about 0.1 mg/ml. Both benzotriazoles are readily degraded by the Fenton reaction; they are also degraded slowly in the presence of horseradis...
A series of eleven specially designed benzotriazole monoazo dyes for use in surface enhanced resonance Raman scattering studies are reported. Unlike previous benzotriazole dyes produced for SERRS, these dyes have been synthesised to be trifunctional in nature. The presence of the benzotriazole moiety provides surface complexing properties, the azo linkage provides the colour and hence extra sen...
Synthesis and characterization of seven ruthenium (II) and ruthenium (III) chloro sulphoxide complexes with 1, 2, 3-benzotriazole are reported. Three different formulations exist: [cis, fac-RuCl2(so)3(btz)]; [trans-RuCl2(so)3(btz)] and [trans-RuCl4(so)(btz)]-[X]+; where so=dimethylsulphoxide/ tetramethylenesulphoxide; btz = 1, 2, 3-benzotriazole and [X]+ = [(btz)H]+ or Na+. These complexes were...
Four polymer-supported benzotriazoles were prepared by linkage of 5-(hydroxymethyl)benzotriazole and benzotrizaole-5-carboxylic acid with Wang resin, Merrifield resin, and (monomethoxy)poly(ethylene glycol). The solid-phase and liquid-phase syntheses of tetrahydroquinolines were achieved by two-pair coupling reactions of aldehydes and aromatic amines using these polymer-supported benzotriazoles...
In the title compound, C(6)H(5)N(3)O·C(13)H(11)N(3)O, the benzo-triazole ring system in the 1-benzyl-1H-benzotriazole 3-oxide (A) mol-ecule is close to being planar (r.m.s. deviation = 0.011 Å); its mean plane forms a dihedral angle of 67.56 (7)° with that of the attached phenyl ring. The benzotriazole ring system in the 1-hy-droxy-benzotriazole (B) mol-ecule is also close to being planar (r.m....
The development of novel, efficient, and economically viable protocols for synthesizing attractive heterocyclic scaffolds are the ultimate goal for a synthetic organic chemist [1]. In a relevant context, benzotriazole exhibiting benign environmental and interesting chemical characteristics has been widely applied as a synthetic auxiliary for many chemical processes, including multistep preparat...
In the mol-ecule of the title compound, C(14)H(10)N(4), which was prepared by reaction of benzotriazole with 4-(bromo-meth-yl)benzonitrile in alkaline solution, the dihedral angle between the benzotriazole and benzene ring systems is 69.03 (6)°.
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