نتایج جستجو برای: 2 hydroxynaphthalene 14 dione

تعداد نتایج: 2734250  

Journal: :Acta Crystallographica Section E Structure Reports Online 2013

Journal: :Acta Crystallographica Section E Structure Reports Online 2009

Journal: :Acta Crystallographica Section E Structure Reports Online 2012

Journal: :Journal of Natural Products 2021

Phytochemical profiling was undertaken on the crude extracts of Drosera magna to determine nature chemical constituents present. In total, three new flavonol diglycosides (1–3), one flavan-3-ol glycoside (4), and 12 previously reported compounds (5, 9), (15), flavanone (8), 1,4-napthoquinone (6, 7, 13, 14), 2,3-dehydroxynapthalene-1,4-dione (10–12), phenolic acid (16) structure classes were iso...

2010
Xian-Shu Fu Xiao-Ping Yu Wei-Min Wang Fang Lin

The title compound, C(14)H(4)Cl(4)FNO(2), has crystallographic twofold symmetry with the N and F atoms and two C atoms of the benzene ring located on a twofold rotation axis. The isoindole-dione ring system is almost planar [maximum atomic deviation = 0.036 (3) Å], and is twisted with respect to the florobenzene ring, making a dihedral angle of 58.56 (16)°. Weak inter-molecular C-H⋯Cl hydrogen ...

Journal: :Acta Crystallographica Section E Structure Reports Online 2008

Journal: :Acta Crystallographica Section E Structure Reports Online 2009

Journal: :Acta Crystallographica Section E Structure Reports Online 2011

Journal: : 2022

This study includes synthesis and characterization of new derivatives 3-(2-(6-oxo-1,3-thiazinan-3-yl)-R)-1,3-oxazepane-4,7-dione N-Bromo amines 1,3-oxazepane-4,7-dione derivatives. Schiff's bases reactions through one step process in inert solvents. Some employing [1- 4]; addition, synthesized by the reaction different with (Salicylaldehyde) absolute ethanol under reflux. Heterocyclic rings pre...

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