Results 11 to 20 of about 30,942 (194)

Constraints on the Role of Laplace Pressure in Multiphase Reactions and Viscosity of Organic Aerosols

open access: yesGeophysical Research Letters, 2022
Aerosol chemistry has broad relevance for climate and global public health. The role of interfacial phenomena in condensed‐phase aerosol reactions remains poorly understood.
Sarah S. Petters
doaj   +1 more source

Determination of Antioxidant Capacity, Phenolics and Volatile Maillard Reaction Products in Rye-Buckwheat Biscuits Supplemented with 3β-d-Rutinoside

open access: yesMolecules, 2019
The Maillard reaction (MR) is responsible for the development of color, taste and aroma in bakery products though the formation of numerous aroma compounds such as pyrazines, pyrroles and aldehydes, nonvolatile taste active compounds and melanoidins.
Małgorzata Starowicz   +2 more
doaj   +1 more source

Three-component reaction between isatoic anhydride, amine and methyl-substituted furylacrylaldehydes: crystal structures of 3-benzyl-2-[(E)-2-(5-methylfuran-2-yl)vinyl]-2,3-dihydroquinazolin-4(1H)-one, 3-benzyl-2-[(E)-2-(furan-2-yl)-1-methylvinyl]-2,3-dihydroquinazolin-4(1H)-one and 3-(furan-2-ylmethyl)-2-[(E)-2-(furan-2-yl)-1-methylvinyl]-2,3-dihydroquinazolin-4(1H)-one

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2018
Compounds (I), C22H20N2O2, (II), C22H20N2O2 and (III), C20H18N2O3 are the products of three-component reactions between isatoic anhydride, the corresponding amine and 3-(5-methylfuran-2-yl)- or (furan-2-yl)-2-methylacrylaldehyde.
Vladimir P. Zaytsev   +6 more
doaj   +1 more source

Dioxins and furans in fly ashes from an incinerator

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2004
The amount of dioxins and furans in fly ashes from a medical waste incinerator was determined following the US EPA 8280A protocol. Dioxin emissions in both particulate matter and exit gas stream from the incinerator’s chimney were estimated. Furthermore,
Marta Isabel Cobo   +3 more
doaj   +1 more source

(Furan-2-yl)[(furan-2-yl)carbonyldisulfanyl]methanone [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2011
The mol-ecule of the title compound, C(10)H(6)O(4)S(2), has crystallographically imposed twofold symmetry. The dihedral angle formed by the furan rings is 80.90 (8)°. In the crystal, mol-ecules are linked by weak C-H⋯O hydrogen bonds into chains running parallel to the a axis [C-S-S-C torsion angle = 82.04 (11)°].
Qian Wang, Youqin Shu, Xuehui Hou
openaire   +3 more sources

Recent Strides in the Transition Metal-Free Cross-Coupling of Haloacetylenes with Electron-Rich Heterocycles in Solid Media

open access: yesMolecules, 2020
The publications covering new, transition metal-free cross-coupling reactions of pyrroles with electrophilic haloacetylenes in solid medium of metal oxides and salts to regioselectively afford 2-ethynylpyrroles are discussed.
Lyubov’ N. Sobenina, Boris A. Trofimov
doaj   +1 more source

Synthesis of 3-Aryl-3-(Furan-2-yl)Propanoic Acid Derivatives, and Study of Their Antimicrobial Activity

open access: yesMolecules, 2022
Reactions of 3-(furan-2-yl)propenoic acids and their esters with arenes in Brønsted superacid TfOH affords products of hydroarylation of the carbon–carbon double bond, 3-aryl-3-(furan-2-yl)propenoic acid derivatives. According to NMR and DFT studies, the
Mikhail V. Kalyaev   +10 more
doaj   +1 more source

Furan-Containing Oligoaryl Cyclophanene [PDF]

open access: yesOrganic Letters, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Tseng, Jui-Chang   +8 more
openaire   +3 more sources

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

SYNTHESYS OF A FUNCTIONALIZED TETRAHYDROFURAN FRAGMENT THROUGH BROMINATION-CYCLIZATION OF A CONJUGATED DIENE [PDF]

open access: yesChemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2010
Conjugate 1,4-addition of N-bromosuccinimide (NBS) to a diene system, possessing a suitable oxygen functionality, leads to functionalized tetrahydrofuran derivatives, which can be further derivatized into different synthetic targets.
Veaceslav Kulciţki   +4 more
doaj  

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