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Mostrando ítems 41-50 de 1931
Expedient synthesis of 1,6-anhydro-α-D-galactofuranose, a useful intermediate for glycobiological tools
(Beilstein-institut, 2014-07)
A new and efficient three-step procedure for the synthesis of 1,6-anhydro-α-D-galactofuranose is described. The key step involves the formation of the galactofuranosyl iodide by treatment of per-O-TBS-D-Galf with TMSI, the ...
Synthesis of S- and N-functionalized dithiocarbamates from cyclic sulfates
(2013)
A novel methodology for the synthesis of S- and N-functionalized dithiocarbamates starting from cyclic sulfates, amines and carbon disulfide by using different protocols, including microwave assistance and a multicomponent ...
Desenvolvimento de rotinas de manutenção e experimentos práticos com a aplicação da planta industrial didática
(Universidade Tecnológica Federal do ParanáCornelio ProcopioBrasilEngenharia ElétricaUTFPR, 2015-06-09)
The Industrial Plant Teaching has two manufacturing processes: a heating system and a liquid mixing system, it being the object of study of this work. The goal is to develop standardized experimental practices for laboratory ...
Use of synthetic peptides for identifying biotinylation sites in human histones
(Humana Press, 2008)
Posttranslational modifications of histones play an important role in the regulation of chromatin structure and, hence, gene regulation. Recently, we have identified a novel modification of histones: binding of the vitamin ...
Quantitative structure–activity relationships to predict in vitro teac and ec50 of synthetic anilines
(Universidad Nacional de Colombia, 2010)
Quantitative Structure-Activity Relationships (QSAR) are useful in understanding how chemical structure relates to the biological activity of natural or synthetic compounds and for designing newer and better compounds. In ...
Metodologia para seleção de fornecedores de concentrados de cor e resinas plásticas
(Universidade Tecnológica Federal do ParanáCuritibaBrasilEspecialização MBA em Gestão de AtivosUTFPR, 2020-06-30)
The sectors of purchase and supplies are strategic departments for the enterprises. They are responsible for the acquisition of all the items needed for the company’s wellbeing, between them, there are raw materials. Among ...
A convenient synthetic route for alkynylselenides from alkynyl bromides and diaryl diselenides employing copper(I)/imidazole as novel catalyst system
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
A mild, convenient, and effective strategy is developed for the synthesis of alkynyl selenides from alkynyl bromides and respective diselenides using Cul/imidazole as a novel catalyst system with Mg as additive. The Procedure ...
Infrared study of trifluoroacetic acid unpurified synthetic peptides in aqueous solution: Trifluoroacetic acid removal and band assignment
(Academic Press Inc Elsevier Science, 2011-03)
Synthetic peptide or protein samples are mostly unpurified with trifluoroacetic acid (TFA) used during the synthesis procedure, which strongly interferes with structure determination by infrared (IR) spectroscopy. The aim ...
In vitro comparison of the force degradation of orthodontic intraoral elastics from different compositions
(2013)
The synthetic intermaxillary elastic emerged as an alternative for clinical use in patients with latex sensitivity. However, there are disagreements about this elastic protocol use according to the force degradation. The ...