نتایج جستجو برای: benzyl phenylthiourea

تعداد نتایج: 8433  

2008
Hamid Khaldei Hapipah Mohd Ali Seik Weng Ng

The asymmetric unit of the title compound, C(26)H(25)N(3)O(2)S(2), contains two independent mol-ecules, which are linked by a pair of N-H⋯S hydrogen bonds, forming a dimer.

Journal: :Tetrahedron 2011
John M Motto Alvaro Castillo Alexander Greer Laura K Montemayer Erin E Sheepwash Adrian L Schwan

We present an experimental and computational study of the reaction of aryl substituted benzyl 1-alkynyl sulfides with potassium alkoxide in acetonitrile, which produces 2-aryl 2,3-dihydrothiophenes in poor to good yields. The cyclization is most efficient with electron withdrawing groups on the aromatic ring. Evidence indicates there is rapid exchange of protons and tautomerism of the alkynyl u...

Journal: :Organic & biomolecular chemistry 2012
Tatiana Mitkina Christoph Stanglmair Wolfgang Setzer Michael Gruber Horst Kisch Burkhard König

The oxidative coupling of sp(3) hybridized carbon atoms by photocatalysis is a valuable synthetic method as stoichiometric oxidation reagents can be avoided and dihydrogen is the only byproduct of the reaction. Cadmium sulfide, a readily available semiconductor, was used as a visible light heterogeneous photocatalyst for the oxidative coupling of benzyl alcohols and benzyl amines by irradiation...

Journal: :Acta pharmaceutica 2007
Mohamed Rizk Fawzia Ibrahim Mohamed Hefnawy Jenny Jeehan Nasr

An accurate, sensitive and selective reversed-phase micellar liquid chromatographic method was developed for simultaneous determination of benzyl alcohol and benzaldehyde. This method was applied in different injectable formulations containing diclofenac, piroxicam, lincomycin and clindamycin. The method showed excellent linearity in the range of 10-100 microg mL(-1) and 1-20 microg mL(-1) with...

2007
David Scanu Natalia P. Yevlampieva Robert Deschenaux

[60]Fulleropyrrolidine-containing poly(benzyl ether) dendrimers 1-4 were synthesized via 1,3-dipolar cycloaddition of amino acid and aldehyde derivatives and [60]fullerene. Their dielectric and electrooptical (Kerr effect) solution properties were studied and compared with poly(propyleneimine) dendrimers, namely DAB-dendr-(alkyl chain)n and DAB-dendr-(CN)n, and with known symmetrical and non-sy...

Journal: :Carbohydrate research 2003
Balaram Mukhopadhyay Nirmolendu Roy

Starting from D-mannose, D-glucose and L-fucose, the pentasaccharide derivative methyl 2,3,4-tri-O-benzyl-alpha-L-fucopyranosyl-(1-->3)-2-O-acetyl-4,6-O-benzylidene-alpha-D-mannopyranosyl-(1-->3)-2-O-acetyl-6-O-benzyl-4-O-(2,3,4-tri-O-benzyl-alpha-L-fucopyranosyl)-alpha-D-mannopyranosyl-(1-->4)-[2-(trimethylsilyl)ethyl 2,3-di-O-benzyl-beta-D-glucopyranosid]uronate was synthesized. This compound...

2011
Yicun Chen Jinhong Zheng Fuchun Zheng Jinzhi Wang Yanmei Zhang Fenfei Gao Zhanqin Huang Ganggang Shi

Several haloperidol derivatives with a piperidine scaffold that was decorated at the nitrogen atom with different alkyl, benzyl, or substituted benzyl moieties were synthesized at our laboratory to establish a library of compounds with vasodilator activity. Compounds were screened for vasodilatory activity on isolated thoracic aorta rings from rats, and their quantitative structure-activity rel...

Journal: :Applied and environmental microbiology 2013
Virginie Dufour Martin Stahl Eric Rosenfeld Alain Stintzi Christine Baysse

Campylobacter jejuni is a widespread pathogen responsible for most of the food-borne gastrointestinal diseases in Europe. The use of natural antimicrobial molecules is a promising alternative to antibiotic treatments for pathogen control in the food industry. Isothiocyanates are natural antimicrobial compounds, which also display anticancer activity. Several studies described the chemoprotectiv...

Journal: :Chemical research in toxicology 1988
J C Veltman W Dekant F P Guengerich M W Anders

The metabolism and cytotoxicity of benzyl 1,2,3,4,4-pentachlorobuta-1,3-dienyl sulfide (1) and benzyl 2-chloro-1,1,2-trifluoroethyl sulfide (2) were studied as an alternative test of the hypothesis that the toxicity of the cysteine S-conjugates S-(pentachlorobutadienyl)-L-cysteine and S-(2-chloro-1,1,2-trifluoroethyl)-L-cysteine is associated with their metabolism to unstable thiols; the expect...

Journal: :journal of chemical health risks 0
sulmaz asgari ms student, department of agriculture, damghan branch, islamic azad university, damghan, iran. hossein moradi assistant professor, department of horticulture, sari agricultural sciences and natural resources university, sari, iran hossein afshari associate professor, department of agriculture, damghan branch, islamic azad university, damghan, iran.

the aim of this study was to evaluate the physiological and morphological characteristics of narcissus tazatta in response to benzyl adenine (ba) and nano-potassium fertilizer. this experiment was done as factorial with two factors of benzyl adenine hormone and nano-potassium fertilizer in a completely randomized design with ten replications.  benzyl adenine in four levels (0, 500, 750 and1000 ...

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