نتایج جستجو برای: benzyl

تعداد نتایج: 8220  

2013
S. Kundu T. A. Quraishi G. Yu C. Suarez F. N. Keutsch E. A. Stone

Organosulfates are important components of atmospheric organic aerosols, yet their structures, abundances, sources and formation processes are not adequately understood. This study presents the identification and quantitation of benzyl sulfate in atmospheric aerosols, which is the first confirmed atmospheric organosulfate with aromatic carbon backbone. Benzyl sulfate was identified and quantifi...

2011
Juan I. Sarmiento-Sánchez Gerardo Aguirre Ignacio A. Rivero

In the title compound, C(19)H(15)N(3), the benzyl group is almost perpendicular to the triazole ring [dihedral angle = 80.64 (8)°], while the napthyl group makes an angle of 30.27 (12)° with the plane of the triazole ring. This conformation is different from the 1-benzyl-4-phenyl-1H-1,2,3-triazole analogue, which has the benzyl ring system at an angle of 87.94° and the phenyl group at an angle ...

صالحی, مسلم, صفاری, وحید رضا , فرهمند , همایون,

The improvement of growth and flowering of petunia as one of the most popular and cultivated bedding plants in Iran, is of significant importance. Thus, a CRD experiment with five replications was conducted at the Research Greenhouse of Shahid Bahonar University, Kerman, Iran.  From 48 days after sowing, when the seedlings had 5-6 true leaves, the seedlings were sprayed with  thiamine (0 and 10...

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...

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