96589-94-5Relevant academic research and scientific papers
Supramolecular ensemble of a TICT-AIEE active pyrazine derivative and CuO NPs: A potential photocatalytic system for sonogashira couplings
Deol, Harnimarta,Pramanik, Subhamay,Kumar, Manoj,Khan, Imran A.,Bhalla, Vandana
, p. 3771 - 3783 (2016)
The donor-acceptor system 4 having pyrazine scaffold as an acceptor moiety coupled to donor amino groups through rotatable phenyl rings has been synthesized, which formed aggregates in aqueous media, exhibited copper induced restriction to intramolecular rotation, and served as a "not quenched" probe for the detection of copper(II) ions. During this process, the aggregates of derivative 4 acted as reactors and stabilizers for the generation of CuO NPs and themselves became oxidized to form polyamine derivative 6. Interestingly, the oxidized species 6 in combination with copper oxide nanoparticles served as light-harvesting antennas and exhibited excellent photocatalytic efficiency in Sonogashira coupling under mild and eco-friendly conditions (room temperature, aqueous media, aerial conditions, and visible light irradiation).
Y-shaped novel AIEE active push-pull quinoxaline derivatives displaying acidochromism and use towards white light emission by controlled protonation
Gupta, Shalu,Milton, Marilyn Daisy
, (2021/08/17)
A series of novel Y-shaped push-pull quinoxaline derivatives 2a-2f with quadrupolar and tripodal arrangement having quinoxaline as an electron acceptor (A) and biphenyl and phenyl as an electron donor (D), was designed, synthesized and characterized. Sing
A Highly Sensitive Bimodal Detection of Amine Vapours Based on Aggregation Induced Emission of 1,2-Dihydroquinoxaline Derivatives
Alam, Parvej,Leung, Nelson L. C.,Su, Huifang,Qiu, Zijie,Kwok, Ryan T. K.,Lam, Jacky W. Y.,Tang, Ben Zhong
, p. 14911 - 14917 (2017/10/07)
The detection of food spoilage is a major concern in food safety as large amounts of food are transported globally. Direct analysis of food samples is often time-consuming and requires expensive analytical instrumentation. A much simpler and more cost-eff
Synthesis of quinoxalines and pyrido[2,3-b]pyrazines by SuzukiMiyaura cross-coupling reaction
Kumbhar, Arjun,Jadhav, Sanjay,Salunkhe, Rajashri
, p. 5431 - 5440 (2016/06/01)
Abstract: Bromo-substituted quinoxalines and pyrido[2,3-b]pyrazines were synthesized by condensation reactions of aromatic 1,2-diamino and 1,2-diketone compounds. These compounds were used as common intermediates for postcondensation modification by SuzukiMiyaura coupling reaction to form aryl-substituted quinoxalines and pyrido[2,3-b]pyrazines. High-efficiency with improved product yield of aryl-substituted quinoxalines and pyrido[2,3-b]pyrazine derivatives was achieved by conducting a coupling reaction in presence of Pd(dppf)Cl2·CH2Cl2 in tetrahydrofuran (THF) using K2CO3 as base at reflux temperature. Graphical abstract: [Figure not available: see fulltext.].
