Results 41 to 50 of about 12,051 (164)
A new and efficient procedure for the synthesis of hexahydropyrimidine-fused 1,4-naphthoquinones
Beilstein Journal of Organic Chemistry, 2015 A new and efficient method for the synthesis of hexahydropyrimidine-fused 1,4-naphthoquinones in one step with high yields from the reaction of lawsone with 1,3,5-triazinanes was developed.
Marcelo Isidoro P. Reis +4 more
doaj +1 more source
ANÁLISE CONFORMACIONAL DE COMPOSTOS DE BIGINELLI COM ATIVIDADE ANTINEOPLÁSICA
Eclética Química, 2018 Dihydropyrimidinones, such as monastrol and analogues, are heterocycles with known antineoplastic activity. Conformational analysis represents an important preliminary step in structure-activity correlation studies. Herein we describe the conformational
Marcelo Volpatto Marques +2 more
doaj +1 more source
, 2016 Coleção de conteúdos multimídia sobre Pilhas e baterias: Eletrodeposição, Corrosão. O projeto desenvolvido pela PUC/RJ e Universidade Federal Fluminense (UFF), criado a partir do Edital 01/2007, do Ministério da Educação (MEC) e do Ministério da Ciência ...
core +1 more source
Natural Product Communications, 2007 A method for the isolation of three compounds from the infusion of leaves of Byrsonima basiloba A. Juss. by high-speed counter-current chromatography (HSCCC) was developed.
Miriam Sannomiya +6 more
doaj +1 more source
Beilstein Journal of Organic Chemistry, 2014 Three new porphyrin aminoalkyl dibenzylphosphoramidates were synthesized by nucleophilic aromatic substitution of one p-fluorine atom of 5,10,15,20-tetrakis(pentafluorophenyl)porphyrin (TPPF20) by primary aminoalkyl dibenzylphosphoramidates.
Marcos C. de Souza +5 more
doaj +1 more source
Menadione: a platform and a target to valuable compounds synthesis
Beilstein Journal of Organic Chemistry, 2022 Naphthoquinones are important natural or synthetic compounds belonging to the general class of quinones. Many compounds in this class have become drugs that are on the pharmaceutical market for the treatment of various diseases.
Acácio S. de Souza +8 more
doaj +1 more source
Biofuels, Bioproducts and Biorefining, EarlyView.Abstract Oxidation of furfural (FF), a bio‐based platform chemical, was investigated using a range of iron‐, vanadium‐ and iron–zinc‐oxalates supported on silica gel (FeVOx@silica and FeZnOx@silica, respectively) as precursor for FeV@silica and FeZn@silica oxide catalysts and H2O2 as a green oxidant.
Alexander Pokutsa +2 more
wiley +1 more source
Nanographene‐Based van der Waals Organic Framework With Permanent Porosity
Angewandte Chemie, Volume 138, Issue 27, 1 July 2026.Unlocking record‐breaking porosity in a supramolecular organic framework (SOF). Through the strategic design of a C3‐symmetric nanographene, a robust supramolecular framework is achieved via exclusively weak van der Waals forces. This metal‐free scaffold reaches a benchmark BET surface area of 1108 m2 g−1 –the highest to date for this class–combining ...
Arturo Oró +5 more
wiley +2 more sources
Synthesis of (macro)heterocycles by consecutive/repetitive isocyanide-based multicomponent reactions
Beilstein Journal of Organic Chemistry, 2019 Isocyanide-based multicomponent reactions are a versatile tool in the synthesis of heterocycles. This review describes recently developed approaches based on the combination of consecutive or repetitive isocyanide-based multicomponent reactions for the ...
Angélica de Fátima S. Barreto +1 more
doaj +1 more source
Chiral Separations in Preparative Scale: A Medicinal Chemistry Point of View
Molecules, 2020 Enantiomeric separation is a key step in the development of a new chiral drug. Preparative liquid chromatography (LC) continues to be the technique of choice either during the drug discovery process, to achieve a few milligrams, or to a scale-up during ...
Madalena M.M. Pinto +2 more
doaj +1 more source