Benzoyl Chloride
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Abrasive Wear Behaviour of Surface Modified Jute Fiber Reinforced Epoxy Composites
The present article depicts the specific wear rate of jute fiber reinforced epoxy composites with different weight percentage of fiber loading (10, 20, 30, 40 wt. %) and different chemical treatments (Alkaline and Benzoyl chloride treatment). The three-body abrasive wear analysis was studied according to ASTM-G65 using a rubber wheel abrasion apparatus (dry
Mat. Res.. Publicado em: 30/03/2017
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2. Metodologia analítica para determinação de esteróis fecais em sedimentos por Cromatografia Líquida de Alta Eficiência
The fecal sterols are considered important indicators of fecal contamination in aquatic environments. Organic compounds are hydrophobic and are associated with the particulate material and can be preserved for a long time with negligible degradation. The relationships between coprostanol and other sterols found in the environment are important to confirm the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/05/2011
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3. USING OF THE IONIC LIQUIDS IN THE SYNTHESIS OF ENONES AND ENAMINONES / UTILIZAÇÃO DE LÍQUIDOS IÔNICOS NA SÍNTESE DE ENONAS E DE ENAMINONAS
The use of ionic liquids 1-butyl-3-methylimidazolium tetrafluorborate ([BMIM] [BF4]) and 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF6]) as catalytic solvent in the synthesis of 1,1,1-trichloro(fluoro)-3-alken-2-onas [CX3C(O)C(R2)=C(R1)OR] from the reaction of enolethers or acetals with acyl halides is reported. The results obtained in the pres
Publicado em: 2009
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4. SÃntese assimÃtrica de 3-carboxamidas enantiomericamente puras e de hidrazidas e arilhidrazonas, derivadas do novo heterociclo 7-(benzoil)- 2-isoxazolina[5,4-b] pirrolidina. AvaliaÃÃo das atividades biolÃgicas
In our previous studies, aza-bicyclic 2-isoxazolines were obtained, such as, 2- isoxazoline[5,4-b] piperidine and 2-isoxazoline[5,4-b] pyrrolidine. N-(benzoyl)-amides and, derived from these heterocycles, showed promising biological activity, (anti-inflammatory and toxicity). Compounds containing hydrazide and hydrazone functionalities are described in the l
Publicado em: 2008
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5. Síntese de Novos Nucleosídeos Quinolônicos não Naturais como Potenciais Agentes Antivirais / Synthesis of New Quinolonics Nucleosides no Natural by Antivirals Potential Agents
The interesting biological activities of synthetic quinoline derivatives as antibacterial and antiviral agents urged many research groups to construct numerous analogues of such compounds. Since the discovery of acyclovir as a potent and selective antiherpes virus agent, considerable interest has been focused in the synthesis of novel acyclonucleoside analog
Publicado em: 2003
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6. Reações de transferência de acila em microemulsões água/óleo: hidrólise de benzoatos de fenila catalisada pelo ânion o-iodosobenzoato. / Acyl-transfer reactions in water/oil microemulsions: phenyl benzoates hydrolysis catalysed by the o-iodosobenzoate anion.
The mechanism of hydrolysis of the following two series of phenylbenzoate esters catalyzed by 1-oxi-1,2-benziodoxol-3(1H)-one (o-iodosobenzoate anion, IBA-), was studied in water-in-oil microemulsion (W/O mE) of benzylhexadecyl- dimethylammonium chloride (CBzCl) in benzene. 4-nitrophenyl 4-X-benzoates (X= NO2, CN, Cl and H) and Y-nitrophenyl 4-nitrobenzoates
Publicado em: 1997
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7. Synthesis of 1-[3-deoxy-β-D-psicofuranosyl]uracil and related compounds
D-Fructose affords on treatment with cyanamide 2-amino-β-D-fructofuro[2′,3′:3,4]-oxazoline which is not isolated but transformed directly by the reaction with ethyl propiolate into O2,3-anhydro-2-[β-D-fructofuranosyl]uracil. This compound is benzoylated to the 1′,4′,6′-tri-O-benzoyl derivative by the action of benzoyl cyanide and triethylamine. O
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8. Synthesis and Antibacterial Evaluation of Novel Water-Soluble Organic Peroxides
A set of new water-soluble organic peroxides has been synthesized and evaluated for in vitro antibacterial activity as part of an effort to develop new antibacterial agents for the treatment of acne vulgaris. The water solubility of these new dialkyl peroxides and peroxyesters was achieved by incorporating either a quaternary ammonium group or a polyethylene
American Society for Microbiology.
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9. Assay for proteolytic activity using a new fluorogenic substrate (peptidyl-3-amino-9-ethyl-carbazole); quantitative determination of lipopolysaccharide at the level of one picogram.
A new sensitive fluorimetric assay has been developed using peptidyl-3-amino-9-ethyl-carbazole as substrate. The fluorescence intensity of free 3-amino-9-ethyl-carbazole (AEC) at 460 nm is between two and three orders of magnitude higher than the fluorescence intensity of acyl-AEC. The release of AEC from a peptidyl derivative by proteases may be monitored c