- Pyridine-based thermally activated delayed fluorescent material and application thereof
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The invention relates to a pyridine-based thermally activated delayed fluorescent material. The material comprises a compound shown as a formula (I) shown in the specification; and in the formula (I), D is an electron-donating group, and A is an electron-withdrawing group. The pyridine-based thermally activated delayed fluorescence material can be used for preparing organic electroluminescent devices, especially non-doped organic electroluminescent devices, and solves the problems of complex design and existed exciton quenching of the current non-doped thermally activated delayed fluorescent material.
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Paragraph 0041-0043
(2021/08/21)
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- Efficient construction of C–C bonds from aryl halides/aryl esters with arylboronic acids catalysed by palladium(II) thiourea complexes
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A new set of palladium(II) complexes comprising phenyl(thiazolyl)thiourea ligands have been successfully synthesized and characterized with the aid of analytical as well as spectral (IR, UV–visible and NMR) methods. A distorted square-planar geometry with N^S coordination mode of thiourea ligands in the new palladium complexes was corroborated by single-crystal X-ray diffraction methods. Interestingly, the palladium(II) thiourea complexes showed the highest catalytic activity with 0.1 mol% catalyst loading in Suzuki–Miyaura cross-coupling reactions utilizing a range of aryl bromides/unactivated aryl chlorides with arylboronic acids as coupling partners in aqueous–organic media. Syntheses of diaryl ketones using aryl esters and arylboronic acids as coupling partners were also achieved with low catalyst loading within 20 h. The potential of our catalyst was demonstrated by its wide substrate scope, low catalyst loadings and high isolated yield. Moreover, the influences of key parameters like solvent, base, temperature and catalyst loading were also investigated.
- Thimma Sambamoorthy, Manikandan,Rengan, Ramesh,Jan Grzegorz, Malecki
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- SUBSTITUTED PYRIMIDINES
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The present invention relates to substituted pyrimidines useful as HIF prolyl hydroxylase inhibitors to treat anemia and like conditions.
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Page/Page column 45
(2013/04/10)
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- SUBSTITUTED PYRIMIDINES
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Disclosed are substituted pyrimidines useful as HIF prolyl hydroxylase inhibitors to treat anemia and like conditions.
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- Novel red electroluminescent compounds and organic electronluminescent device using same
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The present invention relates to novel red phosphorescent compounds exhibiting high luminous efficiency, and organic electroluminescent devices comprising the same.
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Page/Page column 14
(2009/02/10)
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- Novel red electroluminescent compounds and organic electroluminescent device using the same
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The present invention relates to novel red phosphorescent compounds exhibiting high luminous efficiency, and organic electroluminescent devices comprising the same.
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Page/Page column 11-12
(2009/04/24)
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