- Confined photoactive substructures on a chiral scaffold: The design of an electroluminescent polyimide as material for PLED
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The optical and electroluminescent properties of a new chiral electroluminescent polyimide consisting of alternating conjugated segments and chiral units is described. The synthesized polymer exhibited high thermal stability (Td = 350°C), high electron af
- Dautel, Olivier J.,Wantz, Guillaume,Flot, David,Lere-Porte, Jean-Pierre,Moreau, Joel J. E.,Parneix, Jean-Paul,Serein-Spirau, Francoise,Vignau, Laurence
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- Organic room-temperature phosphorescent material containing imide structure, preparation method and application thereof
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The invention discloses an organic room-temperature phosphorescent material containing an imide structure, a preparation method and application thereof, and belongs to the technical field of organic materials, wherein the structural formula of the organic room-temperature phosphorescent material is represented by a formula I, R1 is one of H, C1-C4 fatty alkyl, hydroxyl, amino, nitro, cyano, aldehyde group, carboxyl, halogen, halogenated alkyl and methoxy, and R2 is a nitrogen-containing heterocyclic electron donor group. According to the invention, the organic room-temperature phosphorescent material has good electron transport performance and high fluorescence quantum efficiency, is suitable for preparing a light-emitting layer or an electron transport layer in an organic electroluminescent device, and can be used for culturing to obtain various different single crystals; and the luminescent material provided by the invention is also applicable to the fields of chemistry, biological detection, biological imaging, anti-counterfeiting and the like.
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Paragraph 0044-0047; 0049-0052
(2020/07/13)
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- Organic electroluminescence material and organic photoelectric device
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The invention provides a compound with a structure as shown in formula I. The invention also provides an application of the compound in an organic photoelectric device and the organic photoelectric device. The compound provided by the invention has a thermal activation delayed fluorescence (TADF) material luminous mechanism, can be used as a novel TADF material applied to the field of the organic photoelectric device and can increase the illuminating efficiency. No expensive metal complex is used by the compound provided by the invention; the manufacturing cost is low; the application prospect is wider.
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Paragraph 0153; 0154; 0155
(2017/07/21)
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- Synthetic method for N-substituted imide
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The invention provides a synthetic method for N-substituted imide. According to the method, aromatic ketone and amine are used as substrates, air or oxygen is used as an oxygen source, and cyclic imide is produced under liquid phase conditions under the action of a catalyst. The method is mild in conditions, high in oxidation efficiency and high in product yield; and since the method uses air or oxygen as the oxygen source, the method is economic and environment-friendly and has good application prospect.
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Paragraph 0016; 0022; 0023; 0024; 0025
(2017/04/20)
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- Cuprous Oxide Catalyzed Oxidative C-C Bond Cleavage for C-N Bond Formation: Synthesis of Cyclic Imides from Ketones and Amines
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Selective oxidative cleavage of a C-C bond offers a straightforward method to functionalize organic skeletons. Reported herein is the oxidative C-C bond cleavage of ketone for C-N bond formation over a cuprous oxide catalyst with molecular oxygen as the oxidant. A wide range of ketones and amines are converted into cyclic imides with moderate to excellent yields. In-depth studies show that both α-C-H and β-C-H bonds adjacent to the carbonyl groups are indispensable for the C-C bond cleavage. DFT calculations indicate the reaction is initiated with the oxidation of the α-C-H bond. Amines lower the activation energy of the C-C bond cleavage, and thus promote the reaction. New insight into the C-C bond cleavage mechanism is presented.
- Wang, Min,Lu, Jianmin,Ma, Jiping,Zhang, Zhe,Wang, Feng
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supporting information
p. 14061 - 14065
(2016/01/25)
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- Synthesis of biologically potent novel 5-(2-bromopyridin-3-yl-amino)-2- alkyl/aryl-isoindoline-1,3-dione analogs via buchwald-hartwig c-n coupling reaction
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A novel series of N-alkyl/aryl substituted phthalimide analogs containing 2-bromopyridyl functionality were synthesized applying optimized Buchwald-Hartwig amination conditions using palladium acetate, cesium carbonate, and =BINAP in toluene at 110°C unde
- Gupta, Ankur,Kamble, Bhagyashree,Nanjan, Chandrasekar M.J.
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p. 139 - 146
(2013/07/26)
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- Monothio- and Dithio-phthalimides: Synthesis of Dibromo-β-isoindigo Derivatives
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5-Bromo-3-oxo-1-thio- and 5-bromo-1,3-dithio-isoindoles (II and III) on reaction with amines either in acetic acid or under fusion give 2-aryl-1-arylimino-5-bromo-3-isoindolines (VI) and substituted 1-arylimino-5-bromo-3-thioisoindoles (VIII), respectivel
- El-Sharief, A. M. Sh.,Hammad, N.E.
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p. 1039 - 1042
(2007/10/02)
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