Navegando Química - PPGQ por assunto "Reações multicomponente"
Itens para a visualização no momento 1-6 of 6
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Reações multicomponentes de Diels-Alder com parabenzoquinonas : intermediários para Sesquiterpenos Eudesmanos
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, , 20/09/2010)In the first part of this thesis we describe the study of the oxidation of phenols to p-benzoquinones. The metal complexes used as catalysts in this study are: [CoII(salen)], [CoII(dmsalen)], [CoII(salpn)], [CoII(dmsalpn)], ... -
Reações multicomponentes na preparação de compostos nitrogenados polifuncionalizados
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, , 03/09/2010)This PhD thesis covered was devoted to the preparation of nitrogenated intermediates by multicomponent reactions (3-MCR) with potential application in the bioactive compound synthesis. The developed methodology consisted ... -
Metátese de fechamento de anel: espiro-anelação estereosseletiva / Reações multicomponentes de Diels-Alder na síntese de compostos tricíclicos
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, , 22/02/2011)In this work, a study of different synthetic ways was made in order to obtain spiro compounds starting from R-(-)-carvone, getting to the formation of cycloheptenone as an intermediate, which undergoes two consecutives ... -
A reação de Diels-Alder de p-Benzoquinonas em versão multicomponente
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, , 24/08/2005)A study of the multicomponent version of the Diels-Alder reaction of para-benzoquinones has been proposed, with the idea of uniting the versatility of the reaction with the simplicity of the methodology. The key step ... -
Nanoestructured catalysts for organic reactions: design, synthesis and applications
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 29/07/2016)The development of more efficient and selective catalysts actively contributes for the design of safer, cleaner and less energy-demanding processes, and, therefore, catalysis is one of the cornerstones of green chemistry. ... -
A reação de Diels-Alder entre p-Benzoquinonas 1,3-Pentadienos-1-Substituídos.
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, , 23/07/2004)In this dissertation, studies are described on the cycloaddition of 1-silyloxypentadiene- 1,3 and 1-acylamino-pentadiene-1,3 with alkylated para-benzoquinones. The first methodology involves cycloaddition reactions of ...