Results 71 to 80 of about 86,327 (239)
ChemSusChem, Volume 18, Issue 6, March 15, 2025.Sustainable hydrogen production can be obtained from hydogen‐rich biomass‐derived organic molecules through Acceptorless Dehydrogenation (AD) reactions. Glycerol and sugars are available in large quantities from industry and can be successfully used as substrates in AD protocols, in the presence of tailored, selective, easily tunable and thermally ...
Sylwia Kostera, Luca Gonsalvi
wiley +1 more source
Investigação dos processos de gelatinização e extrusão de amido de milho
Polímeros, 2000 Os processos de gelatinização e de extrusão de amido de milho foram estudados. Calorimetria diferencial de varredura e miscroscopia óptica foram utilizadas na determinação da temperatura de gelatinização, T(G), em função do grau de umidade.
Souza Roberta C. R., Andrade Cristina T.
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Revista Brasileira de Plantas Medicinais, 2010 O objetivo deste trabalho foi determinar as variações dos teores de açúcares solúveis totais e de reserva nas diferentes fases de desenvolvimento de mudas de gengibre.
C.G Girardi, R Pescador
doaj +1 more source
Scope and Mechanistic Study of the Ruthenium-Catalyzed \u3cem\u3eortho\u3c/em\u3e-C−H Bond Activation and Cyclization Reactions of Arylamines with Terminal Alkynes [PDF]
, 2005 The cationic ruthenium hydride complex [(PCy3)2(CO)(CH3CN)2RuH]+BF4- was found to be a highly effective catalyst for the C−H bond activation reaction of arylamines and terminal alkynes.
Yi, Chae S., Yun, Young
core +1 more source
Heuristics-Guided Exploration of Reaction Mechanisms
, 2015 For the investigation of chemical reaction networks, the efficient and accurate determination of all relevant intermediates and elementary reactions is mandatory.
Bergeler, Maike +3 more
core +3 more sources
Bimetallic Cooperativity in Proton Reduction with an Amido‐Bridged Cobalt Catalyst [PDF]
, 2017 The bimetallic catalyst [CoII2(L1)(bpy)2]ClO4 (1), in which L1 is an [NN′2O2] fused ligand, efficiently reduced H+ to H2 in CH3CN in the presence of 100 equiv of HOAc with a turnover number of 18 and a Faradaic efficiency of 94 % after 3 h of bulk ...
Fiedler, Adam T. +5 more
core +2 more sources
Masked Silylenes: Controlled Generation and Reactivity Under Thermal and Equilibrium Conditions
European Journal of Inorganic Chemistry, EarlyView.This Review provides an overview of masked silylenes as bench‐stable precursors that release silylenes (R2Si:) under thermal activation or reversible equilibria. Precursor preparation, generation pathways, and characteristic reactivity are summarized, including trapping chemistry, reversible interconversions, insertion‐type processes, and small ...
Kei Ota, Kanata Miyahara, Norio Nakata
wiley +1 more source
A New Colorimetric Assay for Methionyl Aminopeptidases: Examination of the Binding of a New Class of Pseudopeptide Analog Inhibitors [PDF]
, 2006 A direct and convenient spectrophotometric assay has been developed for methionine aminopeptidases (MetAPs). The method employs the hydrolysis of a substrate that is a methionyl analogue of p-nitroaniline (l-Met-p-NA), which releases the chromogenic ...
Dygas-Holz, Anna M. +5 more
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European Journal of Organic Chemistry, EarlyView.A manifold of catalytic reaction paths can operate in the Au(I)‐catalyzed heteroannulation of salicylic amides and alkynes. However, a subtle initial nucleophilic advantage of N versus O and a kinetic bottleneck at an advanced stage of the mechanistic machinery seems to suffice for the reaction to run on a single path and with exquisite selectivity. We
Ioannis Stylianakis +3 more
wiley +1 more source
Ciência Rural, 2005 Encontrado em diversos alimentos, o amido é a mais importante fonte de carboidratos da dieta. Potencialmente digerível pelas enzimas no trato gastrintestinal, é absorvido na forma de glicose no intestino delgado. Apesar disso, quantidade significativa de
Walter Melissa +2 more
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