- Organic light-emitting device
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An organic light-emitting device includes an emission layer and an electron transport layer. The emission layer includes at least one compound represented one of Formula 1, Formula 2 and/or Formula 3. The electron transport layer includes at least one com
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Page/Page column 97; 98
(2018/09/14)
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- A direct oxidative route for the synthesis of pyrimidines using heteropolyacids
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Pyrimidines are synthesized via a direct oxidative one-pot, three-component, reaction between 1,3-diketone, benzaldehydes, and ammonium acetate in the presence of catalytic amounts of Keggin-type heteropolyacids under refluxing conditions in good yields.
- Heravi, Majid M.,Sadjadi, Samaheh,Oskooie, Hossein A.,Shoar, Rahim Hekmat,Bamoharram, Fatemeh F.
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scheme or table
p. 662 - 666
(2011/03/21)
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- Pyrimidine-core extended π-systems: General synthesis and interesting fluorescent properties
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We have developed a simple but powerful synthetic strategy that permits the assembly of π-systems onto a pyrimidine core in a programmable and diversity-oriented format. The nucleophilic addition of ArLi to 2-methylthiopyrimidine, followed by 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) oxidation, resulted in the production of 4-aryl-2-methylthiopyrimidines. The iterative reaction sequence then gave 4,6-diaryl-2-methylthiopyrimidines. The resulting adduct was further allowed to react with ArMgBr under the catalytic influence of NiCl2(dppe) to afford 2,4,6-triarylpyrimidines. By following this synthetic scheme, interesting pyrimidine-core π-systems were rapidly constructed in a programmable fashion. The successful discovery of a number of interesting fluorescent materials and properties (e.g., solvatofluorochromism) speaks well for the potential of our platform strategy in the development of functional organic materials. Copyright
- Itami, Kenichiro,Yamazaki, Daisuke,Yoshida, Jun-Ichi
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p. 15396 - 15397
(2007/10/03)
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- A NOVEL CONVENIENT ONE STEP PYRIMIDINE SYNTHESIS
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A new method for the preparation of pyrimidines by condensation of β-dicarbonyl compounds, ammonium salts and carbonyl containing substances has been developed.
- Weis, A. L.,Rosenbach, V.
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p. 1453 - 1454
(2007/10/02)
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