Results 61 to 70 of about 9,953 (212)
The Synthesis of Quinoxaline Derivatives
Nippon kagaku zassi, 1961 α-ケトグルタル酸ジエチルに ο-フェニレンジアミンを作用させて得られるβ-(3-オキシ-2-キノキサリル)プロピオン酸エチルを,オキシ塩化リンにより閉環して, 1-エトキシ-4-クロル-3a,9b-ジヒドロピロロ[1.2-a]キノキサリン(VII)を合成し,VIIから 1-エトキシ-3a,9b-ジヒドロピロロ[1.2-a]キノキサリンおよび6-エトキシ-3a,3b,6a,10b-テトラヒドロ-1,2,4-トリアゾロ[4.3-a]ピロロ[2.1-c]キノキサリンを得た。β-プロム-α-ケトグルタル酸ジエチルとο-フェニレンジアミンから,β-ブロム-β-(3-オキシ-2-キノキサリル)プロピオン酸エチルを経由して,trans-β-(2-キノキサリル)アクリル酸誘導体を合成した。
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Química Nova, 2016 In the present work was performed a quantitative structure-activity relationship (QSAR) for a set of derivatives of 1,4-quinoxaline N-oxides with antichagasic activity based on reactivity descriptors from the frame conceptual DFT.
Cristian J. Guerra +4 more
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Improved synthesis of quinocetone and its two desoxymetabolites [PDF]
Journal of the Serbian Chemical Society, 2018 Oxidation of o-nitroaniline with sodium hypochlorite afforded benzofurazan oxide in 96 % yield, and treatment of benzofurazan oxide with acetylacetone in the presence of triethylamine gave 2-acetyl-3-methyl-quinoxaline- -1,4-dioxide in 94 % yield ...
Li Yuwen +4 more
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Bifunctional Photocatalysts: Exploiting Proximity for Enhanced Reaction Performance
Chemistry – A European Journal, EarlyView.This review covers the application of the bifunctional approach to photocatalysis as a means to attain (enhanced) enantioselectivity, and, more in general, as a strategy to enhance the catalytic performance through an effective use of short‐lived reaction intermediates.
Luigi Dolcini +3 more
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Acta Pharmaceutica, 2021 Trichomoniasis is a public health problem worldwide. Trichomoniasis treatment consists of the use of nitroimidazole derivatives; however, therapeutic ineffectiveness occurs in 5 to 20 % of the cases.
Palos Isidro +7 more
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FlexMat, EarlyView.A blue‐hazard‐free single‐emissive‐layer white OLED is realized using an anti‐quenching multiple‐resonance TADF emitter, BNCT. By integrating a sterically protected MR core with efficient energy transfer capability, BNCT enables warm‐white emission with high efficiency, negligible hazardous blue photons, and a simplified device architecture for next ...
Xiao‐Long Liu +9 more
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The Scientific World Journal, 2012 We report a suitable quinoxaline synthesis using molybdophosphovanadates supported on commercial alumina cylinders as catalysts. These catalysts were prepared by incipient wetness impregnation.
Diego M. Ruiz +4 more
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FlexMat, EarlyView.Two exciplex emitters are constructed based on a host‐guest doping strategy, and their exciton dynamics processes are investigated in depth. High‐performance OLEDs are fabricated by employing these exciplexes as emitters or sensitizers, providing excellent electroluminescence efficiencies and low efficiency roll‐offs.
Jingwen Xu +4 more
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Synthesis of Stable Seleno[3,4‐b]quinoxaline Derivatives. [PDF]
ChemInform, 2003 AbstractFor Abstract see ChemInform Abstract in Full Text.
Emad, Aqad +2 more
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FlexMat, EarlyView.A “gemstone‐necklace” FASCE strategy synthesizes single‐component white polymers (PTF‐Qx) by alternating rigid TADF units with flexible alkyl chains. The non‐doped rigid device achieves a high EQE of 15.66% with stable white emission (CIE: 0.36, 0.46).
Wenhao Zhang +7 more
wiley +1 more source