- Synthesis and photovoltaic characterization of triarylamine-substituted quinoxaline push–pull dyes to improve the performance of dye-sensitized solar cells
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Novel unsymmetrical organic sensitizers having donor, π-spacer, and anchoring groups were designed and synthesized for dye-sensitized solar cell (DSSC) application. The dyes 3-{4-[7-(4-{bis[4-(hexyl)phenyl]amino} phenyl)-11,12-dibutoxy-1,4,5,8-tetrahydrod
- Demirak, Kadir,Can, Mustafa,?zsoy, Cihan,Yi?it, Mesude Zeliha,Gültekin, Burak,Demi?, ?erafettin,Zafer, Ceylan
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p. 309 - 322
(2017/07/05)
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- A NOVEL QUINOXALINE COMPOUND FOR ULTRAVIOLET ABSORBERS
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PURPOSE: A novel quinoxaline compound, isomer thereof, precursor drug thereof, or pharmaceutically acceptable salt thereof is provided to absorb UVA and UVB. CONSTITUTION: A quinoxaline compound is denoted by chemical formula 1. An UV absorber or pharmaceutical or cosmetic composition for antiaging contains the quinoxaline compound, isomer thereof, precursor drug thereof, or pharmaceutically acceptable salt, hydrate, or solvate thereof as an active ingredient.
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Paragraph 0047-0048
(2017/10/21)
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- Azolium-linked cyclophanes: Effects of structure, solvent, and counteranions on solution conformation behavior
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(Chemical Equation Presented) This paper describes the synthesis, structural characterization, and solution behavior of some xylyl-linked imidazolium and benzimidazolium cyclophanes decorated with alkyl or alkoxy groups. The addition of alkyl/alkoxy chain
- Baker, Murray V.,Brown, David H.,Heath, Charles H.,Skelton, Brian W.,White, Allan H.,Williams, Charlotte C.
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experimental part
p. 9340 - 9352
(2009/04/07)
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- Rapid synthesis of new discotic liquid crystals based on diquinoxalino[2,3-a:2′,3′-c]phenazine containing hexakis(alkoxy) side arms
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The condensation of 1,2-bisalkoxy-4,5-diaminobenzene 2a-e derivatives with freshly prepared hexaketocyclohexane give hexakis(alkoxy)diquinoxalino[2,3-a:2′,3′-c]phenazines in good yield. DSC and polarization microscopy showed HATOC6 has both the crystalline (K) to mesophase (M) and the mesophase (M) to isotropic (I) phase transitions. Importantly, the alkoxy substituted compound synthesized showed an M-I transition because of greater stability, whereas the reported alkyl-thiol decomposes after the mesophase.
- Ong, Chi Wi,Liao, Su-Chih,Chang, Tsu Hsing,Hsu, Hsiu-Fu
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p. 1477 - 1480
(2007/10/03)
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- Acetoxylation of 6,7-dialkoxy-substituted 1,4-dihydroquinoxaline-2,3-diones (QXs) using fuming nitric acid in acetic acid: A facile synthesis of 5-acyloxy-6,7-dialkoxy QXs
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Treatment of 6,7-dialkoxy-1,4-dihydroquinoxaline-2,3-diones 3 with fuming nitric acid in acetic acid at 25°C resulted in an acetoxylation reaction, giving 5-acetoxy-6,7-dialkoxy-1,4-dihydroquinoxaline-2,3-diones 4 in moderate yields. A mechanism involving ipso attack of nitronium ion as the first step is proposed.
- Zhou, Zhang-Lin,Weber, Eckard,Keana, John F. W.
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p. 7583 - 7586
(2007/10/02)
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