Studies on metal-ion complex formation of crown ether derivatives incorporating a photoionizable spirobenzopyran moiety by electrospray ionization mass spectrometry [PDF]
, 2000 Metal-ion complexation of crown ether derivatives incorporating one and two spirobenzopyran units was investigated by electrospray ionization mass spectrometry.The crowned spirobenzopyran derivatives exhibited very different metal ion-complexing behavior
Arakawa Ryuichi +9 more
core +2 more sources
5′,6-Dichloro-1′,3′,3′-trimethylspiro[2H-1-benzopyran-2,2′-indoline]
Acta Crystallographica Section E, 2008 In the crystal structure of the title compound, C19H17Cl2NO, the indoline and benzopyran ring systems are approximately perpendicular to each other. The indoline ring is in an envelope conformation with the spiro C atom as the flap.
Nameer Alhashimy +3 more
doaj +1 more source
Reusable Ionogel-based Photo-actuators in a Lab-on-a-disc [PDF]
, 2017 This paper describes the design, fabrication and performance of a reusable ionogel-based photo-actuator, in-situ photopolymerised into a lab-on-a-disc microfluidic device, for flow control.
Benito López, Fernando +6 more
core +2 more sources
8-Hydroxy-5,6,7-trimethoxy-2-phenyl-4H-chromen-4-one
Acta Crystallographica Section E, 2008 In the title compound, C18H16O6, the benzopyran group is essentially planar, with the O atoms of the substituent groups lying close to its mean plane. The molecular conformation is governed by intramolecular interactions.
J. Ellena +4 more
doaj +1 more source
Antioxidants that protect mitochondria reduce interleukin-6 and oxidative stress, improve mitochondrial function, and reduce biochemical markers of organ dysfunction in a rat model of acute sepsis [PDF]
, 2013 Funding This study was funded by the Medical Research Council (Grant number G0800149). Research material from this study is not available. Acknowledgement We are very grateful to Dr Robin A.J. Smith, Department of Chemistry, University of Otago, Dunedin,
Galley, H. F. +3 more
core +1 more source
Rotenone: from modelling to implication in Parkinson’s disease
Folia Neuropathologica, 2019 Rotenone ([2R-(2α,6aα,12aα)]-1,2,12,12a-tetrahydro-8,9-dimethoxy-2-(1-methylethenyl)-[1]benzopyran[3,4-b]furo [2,3-h][1]benzopyran-6(6aH)-one) is a naturally occurring compound derived from the roots and stems of Derris, Tephrosia, Lonchocarpus and ...
Khaled Radad +6 more
doaj +1 more source
Photorelease of amino acids from novel thioxobenzo[f]benzopyran ester conjugates [PDF]
, 2011 Aiming at the enhancement of the performance of (9-methoxy-3-oxo-3H-benzo[f]benzopyran-1-yl) methyl ester as photocleavable protecting group for the carboxylic acid function at long-wavelengths, 9-methoxy-3-thioxo-3H-benzo[f]benzopyran-L-valine and L ...
Costa, Susana P. G. +3 more
core +1 more source
Acta Crystallographica Section E, 2012 In the title compound, C15H10O2, a 3-phenyl derivative of the coumarin (also known as 2H-chromen-2-one or 2H-1-benzopyran-2-one) scaffold, the Cp—Cp—Cc—Cc torsion angle between the coumarin (c) ring system and the phenyl (p)
Maria J. Matos +2 more
doaj +1 more source
Benzylidene-bis-(4-Hydroxycoumarin) and Benzopyrano- Coumarin Derivatives: Synthesis, 1H/13C-NMR Conformational and X-ray Crystal Structure Studies and In Vitro Antiviral Activity Evaluations [PDF]
, 2011 We report on the synthesis of 4-hydroxycoumarin dimers 1-15 bearing an aryl substituent on the central linker and fused benzopyranocoumarin derivatives 16-20 and on their in vitro broad anti-DNA and RNA virus activity evaluations. The chemical identities
Balzarini, Jan +8 more
core +4 more sources
Synthesis and Antimicrobial Activities of Some Sulphur Containing Chromene Derivatives
Natural Product Communications, 2012 A series of 3,3-dimethyl-3 H benzothieno[3,2- f ][1]-benzopyran analogues modified at the pyran 1,2-double bond were synthesized. The corresponding dihydro and (±)-cis-diol derivatives were converted into diacetate and cyclic carbonate upon acylation ...
Tuba Şerbetçi +4 more
doaj +1 more source