Results 1 to 10 of about 37,838,535 (141)

3-(4-Bromophenyl)-4-(4-hydroxyanilino)furan-2(5H)-one [PDF]

open access: yesActa Crystallographica Section E, 2011
In the title compound, C16H12BrNO3, the butyrolactone core adopts the furan-2(5H)-one structure and forms dihedral angles of 44.80 (17) and 65.73 (18)° with the bromobenzene and phenol rings, respectively.
Wanxi Peng   +3 more
doaj   +3 more sources

3-(3,4-Dimethoxyphenyl)-4-(2-methoxyanilino)furan-2(5H)-one [PDF]

open access: yesActa Crystallographica Section E, 2011
In the title compound, C19H19NO5, the furanone unit makes a dihedral angle of 30.93 (6)° with the benzene ring and a dihedral angle of 9.51 (6)° with the aniline ring. In the crystal, intermolecular C—H...O
Chun-Lian Tian, Qijian Tian
doaj   +2 more sources

3-(4-Bromophenyl)-4-[2-(4-nitrophenyl)hydrazinyl]furan-2(5H)-one [PDF]

open access: yesActa Crystallographica Section E, 2011
In the title compound, C16H12BrN3O4, the furan-2(5H)-one ring forms a dihedral angle of 33.19 (9)° with the 4-bromobenzene unit and is nearly perpendicular to the 4-nitrobenzene segment, making a dihedral angle of 89.93 (10 ...
Zhu-Ping Xiao   +4 more
doaj   +2 more sources

Effect of Selected Silyl Groups on the Anticancer Activity of 3,4-Dibromo-5-Hydroxy-Furan-2(5H)-One Derivatives [PDF]

open access: yesPharmaceuticals, 2021
The pharmacological effects of carbon to silicon bioisosteric replacements have been widely explored in drug design and medicinal chemistry. Here, we present a systematic investigation of the impact of different silyl groups on the anticancer activity of
Radoslaw Kitel   +4 more
doaj   +2 more sources

3-Bromo-5-methoxy-4-(4-methylpiperidin-1-yl)furan-2(5H)-one [PDF]

open access: yesActa Crystallographica Section E, 2011
There are two molecules in the asymmetric unit of title compound, C11H16BrNO3, which was obtained via the tandem Michael addition–elimination reaction of 3,4-dibromo-5-methoxyfuran-2(5H)-one and 4-methylpiperidine in the presence of potassium ...
Xin-Ping Wei   +3 more
doaj   +2 more sources

4,4′-Dianilino-3,3′-(4-chlorobenzylidene)bis[furan-2(5H)-one] [PDF]

open access: yesActa Crystallographica Section E, 2009
In the molecule of the title compound, C27H21ClN2O4, the dihedral angle between the furan rings is 67.00 (3)°. The chlorophenyl ring is oriented at dihedral angles of 76.61 (3) and 69.36 (3)° with respect ...
Feng Shi, Dian-Xiang Zhou, Shu-Jiang Tu
doaj   +2 more sources

3-Chloro-4-dimethylamino-5-[(1R,2S,5R)-2-isopropyl-5-methylcyclohexyloxy]furan-2(5H)-one [PDF]

open access: yesActa Crystallographica Section E, 2011
The title compound, C16H26ClNO3 contains one almost planar furanone ring [maximum deviation of 0.021 (2) Å for the O atom] with a stereogenic center (S) and one cyclohexane ring which displays a chair conformation and has ...
Xiu-Mei Song   +3 more
doaj   +2 more sources

(5S)-3-Chloro-4-diallylamino-5-[(1R,2S,5R)-2-isopropyl-5-methylcyclohexyloxy]furan-2(5H)-one [PDF]

open access: yesActa Crystallographica Section E, 2011
The title compound, C20H30ClNO3, was obtained via a tandem asymmetric Michael addition–elimination reaction of (5S)-3,4-dichloro-5-(l-menthyloxy)-2(5H)-furanone and diallylamine in the presence of potassium fluoride.
Dong-Na Huang   +3 more
doaj   +2 more sources

Interaction of 3H-furan-2-ones and 4-oxobutanoic acids with 2-(aminophenyl)methanol [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Серия Химия. Биология. Экология, 2022
Reactions of 4-oxobutanoic acids as well as their cyclic analogues 3H-furan-2-ones with 1,3-binucleophilic reagent (2-aminophenyl) methanol lead to the formation of 1-R-5H-benzo[d]pyrrolo[2,1-b][1,3]oxazines and 3a-R-2,3,3a-trihydro-5H-benzo[d]pyrrolo[2 ...
Amalʼchieva, Olga A.   +3 more
doaj   +1 more source

Mechanism of the Photochemical Isomerization and Oxidation of 2-Butenedial: A Theoretical Study

open access: yesMolecules, 2023
Under tropospheric conditions, 2-butenedial is photochemically removed to produce secondary organic aerosol. Upon solar irradiation in the lower troposphere, the main photochemical products are ketene-enol (a key intermediate product), furanones, and ...
Andrea Maranzana, Glauco Tonachini
doaj   +1 more source

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