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Mostrando ítems 11-20 de 1864
Intramolecular Catalysis of Phosphodiester Hydrolysis by Two Imidazoles
(Amer Chemical SocWashingtonEUA, 2010)
Synthesis of ionones by cyclization of pseudoionone on solid acid catalysts
(Springer, 2008-07)
Ionone synthesis (α, β and γ isomers) by pseudoionone cyclization was studied on zeolite HBEA, Amberlyst 35W, SiO2-Al 2O3, and unsupported and silica-supported heteropolyacids (HPA/SiO2). Ionone formation was preferentially ...
Esterificação metílica dos ácidos graxos oleico e esteárico empregando catálise em meio homogêneo e heterogêneo
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilDepartamento Acadêmico de QuímicaQuímicaUTFPR, 2015-06-16)
The present work aimed to obtain monoesters alkyl esters (biodiesel) from the process of methyl esterification of fatty acids oleic and stearic acids with Catalysis in homogeneous and heterogeneous medium. For homogeneous ...
Synthesis of ionones on solid Brønsted acid catalysts: Effect of acid site strength on ionone isomer selectivity
(Elsevier Science, 2010-01)
The effect of Brønsted acid site strength on the liquid-phase conversion of pseudoionone to ionone isomers (α-, β- and γ-ionone) was studied on resin Amberlyst 35W, silica-supported heteropolyacid (HPAS) and silica-supported ...
Solvent free esterification reactions using Lewis acids in solid phase catalysis
(Elsevier B.V., 2014)
AN INEXPENSIVE AND CONVENIENT PROCEDURE FOR CHLOROMETHYLATION OF AROMATIC HYDROCARBONS BY PHASE TRANSFER CATALYSIS IN AQUEOUS MEDIA
(Sociedad Chilena de Química, 2010)
Parametric sensitivity and safe operating condition of the hydrolysis of acetic anhydride in a batch reactor.
(Centro de Informacion Tecnologica, 2016-01-01)
The results of a study on the parametric sensitivity of acetic acid production by hydrolysis of acetic anhydride, using acid homogeneous catalysis in a batch reactor, are presented. Dimensionless parameters of mass and ...
The Mycobacterium leprae hsp65 displays proteolytic activity. Mutagenesis studies indicate that the M. leprae hsp65 Proteolytic activity is catalytically related to the HslVU protease?
(2002-06-11)
The present study reports, for the first time, that the recombinant hsp65 from Mycobacterium leprae (chaperonin 2) displays a proteolytic activity toward oligopeptides. The M. leprae hsp65 proteolytic activity revealed a ...
Chiral Lewis acid catalysts in diels-Alder cycloadditions: mechanistic aspects and synthetic applications of recent systems
(Sociedade Brasileira de Química, 1997)