نتایج جستجو برای: formic acid

تعداد نتایج: 747589  

2017

Formamides represent an important class of intermediates in various organic syntheses. They have been used in the synthesis of some pharmaceutically important compounds such as Fluoroquinolones [1], 1, 2 dihydro quinolones [2] and Nitrogen based heterocyclic compounds [3]. In Lewis bases, its main importance is to catalyze some important reactions such as allylation [4] and hydrosilyation of ca...

2014
Laura Kupiainen Juha Ahola Juha Tanskanen

Hydrolysis is a reaction to produce sugars from lignocellulosic raw materials for biochemical production. The present study elucidates the hydrolysis of cellulose and formation of glucose decomposition products catalyzed by 5% to 20% (w/w) formic acid at 180 to 220 °C with an initial cellulose concentration of 10 to 100 g/L. Microcrystalline cellulose was used as a model compound. The experimen...

2003
N. G. Fransen H. A. P. Urlings P. G. H. Bijker

Aerobically activated sludge from a pig slaughterhouse wastewater-treatment plant was mixed with 0.35 or 0.5% (wtlwt) dextrose, with 0.5% (wtlwt) dextrose and 0.05 or 0.2% (vlv) f ormic acid, or with 2.5% (wtlwt) molasses and 0.1% (v/v) formic acid, and was pasteurized at 95°C for 5 min. After cooling to approximately 20°C the sludge was inoculated with l@-lo7 cfu Lactobacillus plantarum/g slud...

2010
Min Lei Lei Ma Lihong Hu

Formamide derivatives have been synthesized in excellent yields from amine and formic acid in the presence of a catalytic amount of thiamine hydrochloride (VB1) at 80 !C. The advantages of this method are the use of a cheap, stable, non-toxic, and readily available catalyst, easy work-up, improved yields, and solvent-free conditions. " 2010 Elsevier Ltd. All rights reserved. Formylation of amin...

Journal: :Nanoscale 2016
Lian Ying Zhang Zhi Liang Zhao Weiyong Yuan Chang Ming Li

Ultrasmall and uniform Pd6Co nanocrystals were deposited on 3D graphene by a facile one-pot surfactant-free route for a catalyst toward formic acid oxidation, showing a much higher electrocatalytic activity, larger peak current density and better stability than Pd/3DG, Pd/C as well as commercial Pd-C, and thus offering great potential for an efficient anode catalyst toward high performance dire...

2004
T. Kecskés J. Raskó J. Kiss

The interaction of formaldehyde with Pt/TiO2 and Au/TiO2 catalysts was investigated at 300–473 K by Fourier transform infrared spectroscopy and mass spectrometry. The effects of the pretreatments and the metal content of the catalysts, as well as the effects of the reaction temperature on the formation of the surface species and on the gas phase products were studied. Molecularly adsorbed forma...

Journal: :research in pharmaceutical sciences 0

bark extract of pinus pinaster contains numerous phenolic compounds such as catechins, taxifolin, and phenolic acids. these compounds have received considerable attentions because of their anti-inflammatory, antimutagenic, anticarcinogenic, antimetastatic and high antioxidant activities. although p. pinaster bark has been intensely investigated in the past; there is comparably less information ...

Journal: :iranian journal of medical sciences 0
s. shamsadini department of ddermatology, afzalipour hospital, kerman university of medical sciences, kerman, iran. m.h. baghery department of ddermatology, afzalipour hospital, kerman university of medical sciences, kerman, iran.

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