Results 11 to 20 of about 39,041 (288)

Thioether-catalysed tandem synthesis of furans and cyclic ethers or lactones [PDF]

, 2017
Acyclic conjugated ynenediones tethered to an alcohol or carboxylic acid are converted into furanyl-substituted cyclic ethers or lactones in a single step by treatment with the tetrahydrothiophene.
Clark, J. Stephen, Klaus, Verena
core   +1 more source

Synthesis of cyclopropyl-substituted furans by Brønsted acid promoted cascade reactions [PDF]

, 2015
Chloroacetic acid promotes an efficient and diastereoselective intramolecular cascade reaction of electron-deficient ynenones to deliver products featuring a 2,3,5-trisubstituted furan bearing a fused cyclopropyl substituent at the 5-position ...
Achmatowicz, Albrecht, Barluenga, Benary, Boto, Casey, Ciufolini, Clark, Corma, Csuk, Csuk, Donaldson, Donohoe, Fedoryński, Feist, Fritz, Gandini, Gilchrist, González, González, Hashmi, Hou, Högberg, Jung, Knorr, Kobayashi, Krasnaya, Kuroda, Lebel, Li, Li, Lipshutz, Ma, MacMillan, Paal, Pellissier, Ripaud, Sperry, Vicente, Wang, Wessjohann, Wipf, Wu, Xia, Yang, Zhang, Zimmerman   +46 more
core   +2 more sources

A surprising steric effect on a tandem cycloaddition/ring-opening reaction : rapid syntheses of difluorinated analogues of (hydroxymethyl)conduritols [PDF]

, 2004
Difluorinated analogues of (hydroxymethyl)conduritols can be synthesised from selected furans and a difluorinated dienophile in two reaction ...
Fawcett, J., Hillier, I.H., Moralee, A.C., Percy, Jonathan, Salafia, Vittoria, Vincent, M.A.   +5 more
core   +1 more source

Impact of consumer behavior on furan and furan-derivative exposure during coffee consumption : a comparison between brewing methods and drinking preferences [PDF]

, 2018
This study examined the influence of consumer behavior on furan, 2-methylfuran, 3-methylfuran, 2,5-dimethylfuran and 2,3-dimethylfuran exposure in coffee.
Rahn, Anja, Yeretzian, Chahan
core   +1 more source

Photooxidations of 2-(γ,ε-Dihydroxyalkyl) Furans in Water: Synthesis of DE-Bicycles of the Pectenotoxins [PDF]

, 2012
Photooxygenations of 2-(γ,ε-dihydroxyalkyl) furans in H2O followed by in situ reduction and ketalization affords, in one synthetic operation, DE-bicyclic ketals of the ...
Kouridaki, Antonia, Montagnon, Tamsyn, Vassilikogiannakis, Georgios   +2 more
core   +1 more source

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

Molecules, 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, Georgios Koutsidis, Henryk Zieliński   +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

Acta 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, Elena A. Sorokina, Elisaveta A. Kvyatkovskaya, Flavien A. A. Toze, Shashank N. Mhaldar, Pavel V. Dorovatovskii, Victor N. Khrustalev   +6 more
doaj   +1 more source

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

Geophysical 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

Synthesis and Anti-Tuberculosis Activity of Substituted 3,4-(dicoumarin-3-yl)-2,5-diphenyl Furans and Pyrroles

Engineering Proceedings, 2022
Increasing rates of multi-drug resistant (MDR) and extremely-drug resistant (XDR) cases of tuberculosis (TB) strains are alarming, and eventually hampered an effective control of the pathogenic disease. In the present study, nine derivatives of 2,3-bis(2-
Bhagwat Jadhav, Ramesh Yamgar, Suraj N. Mali   +2 more
doaj   +1 more source

Using water, light, air and spirulina to access a wide variety of polyoxygenated compounds [PDF]

, 2012
A new set of completely green methods utilising air, light, water and spirulina to transform readily accessible furan substrates into a diverse range of synthetically useful polyoxygenated motifs commonly found in natural products is presented ...
Alexopoulou, Ioanna, Montagnon, Tamsyn, Noutsias, Dimitris, Vassilikogiannakis, Georgios   +3 more
core   +1 more source