نتایج جستجو برای: Benzotriazole

تعداد نتایج: 540  

2014
Yu Ren Ling Zhang Cheng-He Zhou Rong-Xia Geng

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...

Journal: :Environmental science & technology 2012
Ting Ruan Runzeng Liu Qiang Fu Thanh Wang Yawei Wang Shanjun Song Pu Wang Man Teng Guibin Jiang

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...

Journal: :Acta pharmaceutica 2015
Ivan Kos Tin Weitner Sandra Flinčec Grgac Jasna Jablan

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...

2001
X. Wu N. Chou

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...

Journal: :The Analyst 2004
Alexis Enright Ljiljana Fruk Antonio Grondin Callum J McHugh W Ewen Smith Duncan Graham

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...

Journal: :Acta chimica Slovenica 2011
Satyendra N Shukla Pratiksha Gaur Harpreet Kaur Radhey S Srivastava

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...

Journal: :Journal of combinatorial chemistry 2001
S Talukdar R J Chen C T Chen L C Lo J M Fang

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...

2012
P. Selvarathy Grace Samuel Robinson Jebas B. Ravindran Durai Nayagam Dieter Schollmeyer

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....

2013
Dhananjay Kumar Bhuwan B. Mishra Kunj B. Mishra Raju R Kale Vinod K. Tiwari

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...

2008
Wen-Xiang Wang Hong Zhao

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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