Results 31 to 40 of about 920 (115)

Widespread distribution of hmf genes in Proteobacteria reveals key enzymes for 5-hydroxymethylfurfural conversion

open access: yesComputational and Structural Biotechnology Journal, 2021
Furans represent a class of promising chemicals, since they constitute valuable intermediates in conversion of biomass into sustainable products intended to replace petroleum-derivatives.
Raúl A. Donoso   +2 more
doaj   +1 more source

Formation of macrocyclic lactones in the Paternò–Büchi dimerization reaction

open access: yesBeilstein Journal of Organic Chemistry, 2011
Furan-2-ylmethyl 2-oxoacetates 1a,b, in which the furan ring and the carbonyl moiety were embedded intramolecularly, were synthesized from commercially available furan-2-ylmethanol and their photochemical reaction (hν > 290 nm) was investigated.
Junya Arimura   +3 more
doaj   +1 more source

Transition Metal-Free Synthesis of Halobenzo[b]furans from O-Aryl Carbamates via o-Lithiation Reactions

open access: yesMolecules, 2022
A straightforward and transition metal-free one-pot protocol to synthesize halobenzo[b]furans has been developed employing simple and easily available starting materials such as O-aryl carbamates and alkynylsulfones.
Claudia Feberero   +5 more
doaj   +1 more source

High chemoselectivity in the phenol synthesis

open access: yesBeilstein Journal of Organic Chemistry, 2011
Efforts to trap early intermediates of the gold-catalyzed phenol synthesis failed. Neither inter- nor intramolecularly offered vinyl groups, ketones or alcohols were able to intercept the gold carbenoid species. This indicates that the competing steps of
Matthias Rudolph   +3 more
doaj   +1 more source

Recent Updates on Anti-Inflammatory and Antimicrobial Effects of Furan Natural Derivatives

open access: yesJournal of Inflammation Research, 2020
Mohammad Alizadeh,1,* Moludi Jalal,2 Khodaei Hamed,3 Amir Saber,2,* Sorayya Kheirouri,1 Fatemeh Pourteymour Fard Tabrizi,3 Negin Kamari2 1Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; 2Department of Nutritional Sciences,
Alizadeh M   +6 more
doaj  

Interaction between maleic acid and N-R-furfurylamines: crystal structure of 2-methyl-N-[(5-phenylfuran-2-yl)methyl]propan-2-aminium (2Z)-3-carboxyacrylate and N-[(5-iodofuran-2-yl)methyl]-2-methylpropan-2-aminium (2Z)-3-carboxyprop-2-enoate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2017
The title molecular salts, C15H20NO+·C4H3O4−, (I), and C9H15INO+·C4H3O4−, (II), have very similar molecular geometries for both cation and anion. The anions of both (I) and (II) are practically planar (r.m.s. deviations = 0.062 and 0.072 Å, respectively)
Elisaveta A. Kvyatkovskaya   +5 more
doaj   +1 more source

The Impact of Brewing Methods on the Quality of a Cup of Coffee

open access: yesBeverages
A comprehensive overview is provided on factors and processes influencing the final quality of a cup of coffee, with an emphasis on the brewing method’s central role.
Alessandro Genovese   +2 more
doaj   +1 more source

In silico studies of 2,5-disubstituted furans as active antimalarial drug candidates

open access: yesBulletin of the National Research Centre, 2020
Backgrond In silico studies are essential techniques in the modern medicinal chemistry. QSAR modeling and molecular docking are important techniques in both drug discovery and development and have been successfully deployed in the field of medicinal ...
Aliyu Wappah Mahmud   +2 more
doaj   +1 more source

Synthesis and Characterization of Three New Furan-Containing Terpyridine Derivatives

open access: yesMolbank
Three new terpyridine derivatives which contain a pendant furan heterocycle have been prepared and characterized. The first two, 4′-(4,5-dimethylfuran-2-yl)-2,2′:6′,2″-terpyridine (1) and 4′-((1,3-dioxolan-2-yl)furan-2-yl)-2,2′:6′,2″-terpyridine (2), are
Jérôme Husson
doaj   +1 more source

Study of dioxin levels in releases to the atmosphere from the use of secondary fuels in cement kilns during clinker formation

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2005
The aim of this study was to evaluate the influence of dioxins in the emission levels to the atmosphere by using some waste materials, such as used tires or meat meal, as secondary fuel during the production of clinker. For this purpose, three different
Esteban Abad Holgado   +2 more
doaj   +1 more source

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