نتایج جستجو برای: phenacyl halides

تعداد نتایج: 3953  

Journal: :Nippon kagaku zassi 1959

Journal: :Molecules 2009
Saleh Mohammed Al-Mousawi Morsy Ahmed El-Apasery

Phthalimide reacted with phenacyl bromide under microwave irradiation to yield phenacyl isoindolidene-1,3-dione (3b), while 3a reacted with phenylhydrazine to yield the phenylhydrazone 4 that was readily converted into indoylphthalimide 8. Similarly N-benzotriazolylacetone (6a) reacted with phenyl hydrazine to yield the phenylhydrazone 7a that was converted into indoylbenzotriazole 9. Treatment...

2011
Baskar Lakshmanan Papiya Mitra Mazumder D. Sasmal Simon Santosh Jena

Anthelmintic resistance creates a major hitch over the decades throughout the world. As per WHO only few drugs are frequently used in the treatment of helminth infestations in human beings. In view of this, an attempt has been made to study the anthelmintic activity of some newly synthesized 1-substituted imidazoles (1a-1d, 2a-2d) were synthesized and characterized by their spectral data. All t...

2007
Juliana Bodoprost Helmut Rosemeyer

A set of 13 fatty acids was transformed into their phenacyl esters by reaction with phenacyl bromide in acetonitrile using 18-crown-6 as phase-transfer catalyst. Conditions for the RP-18 HPL chromatographic separation of most of the esters has been worked out. Using this standard the fatty acid spectra from skin surface sebum lipids of 17 test persons was taken after microwave-assisted hydrolys...

Journal: :Berichte der deutschen chemischen Gesellschaft 1908

Journal: :Organic and Biomolecular Chemistry 2021

The importance of the relative triplet excited state energies avobenzone (our phenacyl-like photolabile group) and ketoprofen photocaged drug) has been demonstrated by means spectroscopic experiments theoretical calculations.

Journal: :Journal of chromatographic science 2012
Y A Bailey-Shaw K D Golden A G M Pearson R B R Porter

This paper describes the determination of fatty acid composition of coffee, citrus and rum distillery wastes using reversed-phase high-performance liquid chromatography (RP-HPLC). Lipid extracts of the waste samples are derivatized with phenacyl bromide and their phenacyl esters are separated on a C8 reversed-phase column by using continuous gradient elution with water and acetonitrile. The pre...

Journal: :Berichte der deutschen chemischen Gesellschaft 1894

Journal: :Organic & biomolecular chemistry 2011
Sanjeev K Verma B N Acharya M P Kaushik

A ligand free, copper-catalyzed N-arylation reaction of amines with diheteroaryl halides in heterogeneous medium at room temperature has been developed. The protocol is very effective for low boiling amines and useful for amines available in aqueous solution. The reaction gives chemospecific arylation of amines with diheteroaryl halides in the mixture monoheteroaryl halides, diheteroaryl halide...

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