Results 191 to 200 of about 5,253 (234)

Gas‐phase basicity of 2‐furaldehyde

Journal of Mass Spectrometry, 2012
2‐Furaldehyde (2‐FA), also known as furfural or 2‐furancarboxaldehyde, is an heterocyclic aldehyde that can be obtained from the thermal dehydration of pentose monosaccharides. This molecule can be considered as an important sustainable intermediate for the preparation of a great variety of chemicals, pharmaceuticals and furan‐based polymers.
S. Piccolella, RICCI, Andreina, PEPI, Federico, GARZOLI, STEFANIA, RAGNO, Rino, A. Patsilinakos, GIACOMELLO, Pierluigi   +6 more
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HPLC determination of 2-furaldehyde and 5-hydroxymethyl-2-furaldehyde in alcoholic beverages

Microchemical Journal, 2006
Abstract A method for the determination of 2-furaldehyde (F) and 5-hydroxymethyl-2-furaldehyde (HMF) in alcoholic beverages by high performance liquid chromatography (HPLC) is described. A C-18 column and an acetonitrile–water mobile phase with isocratic elution were used. UV detection at 280 nm was carried out.
Angela Alcázar, José M. Jurado, Fernando Pablos, A. Gustavo González, María J. Martín   +4 more
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Liquid chromatographic determination of 2-furaldehyde and 5-hydroxymethyl-2-furaldehyde in beer

Analytica Chimica Acta, 1995
Abstract A method for the determination of 2-furaldehyde (F) and 5-hydroxymethyl-2-furaldehyde (HMF) in beer by liquid chromatography (LC) is described. The method is based on the formation of the 2,4-dinitrophenylhydrazones of carbonyl compounds and subsequent reversed-phase separation of these derivatives. Derivatization is carried out by utilizing
LO COCO, Filippo, VALENTINI C, NOVELLI, Veronica, CECCON, Luciano   +3 more
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Vibrational spectra of 2-furaldehyde

Journal of Molecular Spectroscopy, 1973
Abstract The infrared spectra of 2-furaldehyde and its deutero analog were measured in the gaseous and liquid states and in solutions. The band contours of the spectra of the gaseous phase were discussed. Normal coordinate calculations were carried out and related to the band assignment.
P. Adámek, K. Volka, Z. Ksandr, I. Stibor   +3 more
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Regioselective Palladium-Catalyzed Arylation of 2-Furaldehyde

Organic Letters, 2001
An efficient regioselective method for the direct arylation of 2-furaldehyde to provide a range of pi-diverse 5-aryl-2-formylfuran derivatives is described. The method employs functionalized aryl halides and a catalytic amount of palladium(II) chloride under relatively mild conditions.
M S, McClure, B, Glover, E, McSorley, A, Millar, M H, Osterhout, F, Roschangar   +5 more
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5-Nitro-2-furaldehyde semicarbazone

Acta Crystallographica Section C Crystal Structure Communications, 1994
The molecules of the title compound, C 6 H 6 N 4 O 4 , are linked through bifurcated hydrogen bonds.
T. A. Olszak, O. M. Peeters, N. M. Blaton, C. J. De Ranter   +3 more
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2-Furaldehyde (Furfural)

1959
The apparatus used for the preparation of 2-furaldehyde is shown in Fig. 4. The five-liter round-bottomed flask A is connected by means of a cork to the air condenser B, which consists of a tube of diameter 1.8 cm and length 50 cm. A bent side tube C is sealed to B at a distance of 15 cm from its lower end. The bent upper end of the tube B is connected
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Syntheses from 4,5-dibromo-2-furaldehyde

Bulletin of the Academy of Sciences, USSR Division of Chemical Science, 1965
1. The nitration of 4,5-dibromo-2-furaldehyde with nitric acid in acetic anhydride goes with the replacement of the bromine atom in the α-position of the furan nucleus by a nitro group, and 4-bromo-5-nitro-2-furanmethanediol diacetate is formed. 2. In the reaction of butyllithium with 4,5-dibromo-2-furaldehyde acetal the bromide in the α-
L. D. Tarasova, Ya. L. Gol'dfarb
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ChemInform Abstract: NEW 5‐SUBSTITUTED‐2‐FURALDEHYDES

Chemischer Informationsdienst, 1977
AbstractAusgehend von den Furfuralen (I) und (IV) werden die 5‐substituierten Furfurale (III), (VI) und (VIII) dargestellt.
D. R. SHRIDHAR, C. V. R. SASTRY, M. JOGIBHUKTA, S. R. MOORTY, N. K. VAIDYA, P. G. REDDY   +5 more
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