3010-30-8Relevant academic research and scientific papers
Compound, intermediate thereof, and application of compound in organic electroluminescent device
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Paragraph 0099-0105; 0134-0140, (2021/10/05)
The invention relates to a compound, an intermediate thereof and application of the compound in an organic electroluminescent device. The compound has a structure as shown in a formula I. The compound is applied to the organic electroluminescent device, especially as a hole transport layer material or a hole injection layer material, so that the device has relatively high luminous efficiency and relatively low driving voltage, and is further applied to a display panel and a display device.
Tailored Cobalt-Catalysts for Reductive Alkylation of Anilines with Carboxylic Acids under Mild Conditions
Liu, Weiping,Sahoo, Basudev,Spannenberg, Anke,Junge, Kathrin,Beller, Matthias
supporting information, p. 11673 - 11677 (2018/09/10)
The first cobalt-catalyzed hydrogenative N-methylation and alkylation of amines with readily available carboxylic acid feedstocks as alkylating agents and H2 as ideal reductant is described. Combination of tailor-made triphos ligands with cobalt(II) tetrafluoroborate significantly improved the efficiency, thus promoting the reaction under milder conditions. This novel protocol allows for a broad substrate scope with good functional group tolerance, even in the presence of reducible alkenes, esters, and amides.
N,N′-dialkylation catalyzed by bimetallic iridium complexes containing a saturated bis-N-heterocyclic carbene (NHC) ligand
Kuo, Hsin-Ya,Liu, Yi-Hong,Peng, Shie-Ming,Liu, Shiuh-Tzung
, p. 7248 - 7255,8 (2020/09/02)
Reaction of the bis-aminophosphinimine [m-C6H 4(HNCH2CH2N=PPh3)] with W(CO) 6 afforded [m-C6H4{(CNCH2CH 2NH)W(CO)5}2] (2), which underwent N-alkylation with benzyl bromide to yield [m-C6H4{(CNCH 2CH2NCH2Ph)W(CO)5}2] (3). A carbene transfer reaction from W(0) to Ir(I) proceeded smoothly via the reaction of 3 with [Ir(COD)Cl]2 under mild conditions to give the diiridium(I) carbene complex [m-C6H4{(CNCH 2CH2NH)Ir(CO)2Cl}2] (4). Ligand substitution of 4 with an excess of PPh3 produced the phosphine complex 5. All complexes have been characterized by spectroscopic and elemental analyses. Complexes 2 and 5 were further confirmed by X-ray diffraction studies. Complex 4 is an efficient catalyst for the reductive N,N′-dialkylation of phenylenediamines with alcohols. The mechanistic pathway of the catalysis involving the possible synergistic effect between two metal centers is discussed.
Compositions and methods for inhibiting vinyl aromatic monomer polymerization
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, (2008/06/13)
Methods and compositions are provided for inhibiting the polymerization of vinyl aromatic monomers under distillation conditions. The compositions comprise a combination of a phenylenediamine compound and a hydroxylamine compound.
