A new bianthron glycoside as inhibitor of Trypanosoma cruzi glyceraldehyde 3-phosphate dehydrogenase activity [PDF]
, 2009 A phytochemical investigation of the ethanolic extract of stalks of Senna martiana Benth. (Leguminoseae), native specie of northeast Brazil, resulted in the isolation and spectroscopic characterization of a new bianthrone glycoside, martianine 1 (10,10 ...
ANDRICOPULO, Adriano Defini +5 more
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Novel Lapachol Derivatives and Their Antioxidant Activity
Natural Product Communications, 2006 A convenient synthesis of the new enamine derivatives 2-diethylamino-3-(3-methyl-2-butenyl)-1,4-naphthalenedione ( 2 ), 2-ethylamino-3-(3-methyl-2-butenyl)-1,4-naphthalenedione ( 3 ), 2-diethanolamino-3-(3-methyl-2-butenyl)-1,4-naphthalenedione ( 4 ...
João P. S. Wenceslau +6 more
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Recursos per treballar a l’aula la formulació i nomenclatura de química inorgànica
Ciències, 2015 L’article presenta diversos recursos i activitats elaborats per l’autor que permeten treballar la formulació i nomenclatura de química inorgànica a les classes de química d’educació secundària i de batxillerat, seguint les darreres recomanacions ...
José Ángel Hernández Santadaríao
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Chemical Constituents and Insecticidal Activity of (Annonaceae)
Natural Product Communications, 2008 The present work describes the isolation of dehydrodiscretamine, discretamine, liriodenine, lichexanthone, molvizarin, rolliniastatin-1, annonacin and bullatacin from roots of Rollinia leptopetala R E Fries. The structures were established after analysis
Ângela M.C. Arriaga +9 more
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Copper, samarium and holmium complexes with tetraazamacrocycles potencially interesting for nuclear medicine [PDF]
, 2009 Tese de doutoramento, Química (Química inorgânica), Universidade de Lisboa, Faculdade de Ciências, 2009Resumo disponível no documentoFundação para a Ciência e Tecnologia (SFRH/BD/19168 ...
LACERDA, Sara
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Antimicrobial and Antioxidant Activities of the Essential Oil of Resin of
Natural Product Communications, 2006 The essential oil obtained by hydrodistillation from the fresh resin of Protium heptaphyllum was analyzed by GC/MS. The main constituents were: α-pinene (10.5%), α-phellandrene (16.7%), limonene (16.9%), and terpinolene (28.5%).
P. N. Bandeira +7 more
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Antibacterial and Antioxidant Activities of Ursolic Acid and Derivatives
Molecules, 2014 Ursolic acid, an important bioactive compound, was isolated from ethanol extract of aerial parts of Sambucus australis. In order to develop bioactive ursolic acid derivatives, two semi-synthetic compounds were obtained through modification at C-3.
Patrícia G.G. do Nascimento +7 more
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Reactor para síntese química com aquecimento óhmico, método e suas aplicações [PDF]
, 2013 O presente invento refere-se a um reactor com aquecimento óhmico para síntese química. Este método de aquecimento tem aplicação desde a síntese orgânica à inorgânica, preparação de materiais organo-metálicos, síntese de nanopartículas e de polímeros.
Cavaleiro, J. A. S. +10 more
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A 3D Printer Guide for the Development and Application of Electrochemical Cells and Devices
Frontiers in Chemistry, 2021 3D printing is a type of additive manufacturing (AM), a technology that is on the rise and works by building parts in three dimensions by the deposit of raw material layer upon layer.
Ana Luisa Silva +4 more
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Software educativo en la supervisión de la Química Inorgánica II
Educación QuímicaSe dice que la Química es una ciencia abstracta, y para demostrar sus conceptos es necesario usar esquemas y representaciones, y todavía es considerada difícil de entender por muchos estudiantes.
Antônio Rony da Silva Pereira Rodrigues
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