- Gold(I)-Catalyzed Cascade Cyclization Reactions of Allenynes for the Synthesis of Fused Cyclopropanes and Acenaphthenes
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A gold-catalyzed reaction of phenylene-tethered allenynes with benzofurans gave 1-(naphth-1-yl)cyclopropa[b]benzofuran derivatives, whereas the reaction of 1-allenyl-2-ethynyl-3-methylbenzene derivatives in the absence of benzofurans gave acenaphthenes in good yields. These results can be rationalized by nucleophilic attack of the alkyne moiety on an activated allene to form a vinyl cation intermediate.
- Ikeuchi, Takaya,Inuki, Shinsuke,Oishi, Shinya,Ohno, Hiroaki
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supporting information
p. 7792 - 7796
(2019/05/15)
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- LIGHT-EMITTING MATERIAL FOR ORGANIC ELECTROLUMINESCENT DEVICE, ORGANIC ELECTROLUMINESCENT DEVICE USING SAME, AND MATERIAL FOR ORGANIC ELECTROLUMINESCENT DEVICE
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Disclosed are a novel aromatic compound having excellent light emitting efficiency and thermal stability, a manufacturing method thereof, and an organic electroluminescent device comprising the novel aromatic compound. According to the present invention, provided are an aromatic compound forming a ring, and a novel aromatic derivative represented by chemical formula 1, which improves performance of a device. In the chemical formula 1, Z is equally or differently N (nitrogen), O (oxygen), or S (sulfur) in each case. Also, when Z is N (nitrogen), L1 is an integer of 1, and when Z is O (oxygen) or S (sulfur), L1 is an integer of 0.COPYRIGHT KIPO 2015
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Paragraph 0144-0147
(2016/10/08)
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- ORGANIC COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
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The present invention relates to a novel compound represented by chemical formula 1 and an organic electroluminescent device comprising the same. According to the present invention, the compound is used in an organic material layer of the organic electroluminescent device, desirably a hole transport layer and an electron retarding layer, thereby improving light emitting efficiency, driving voltage, lifespan, etc of the organic electroluminescent device.COPYRIGHT KIPO 2015
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Paragraph 0143-0145
(2016/10/10)
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- NAPHTHALENONE COMPOUNDS EXHIBITING PROLYL HYDROXYLASE INHIBITORY ACTIVITY, COMPOSITIONS, AND USES THEREOF
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Compounds of Formula (I) and Formula (II) are useful as inhibitors of HIF prolyl hydroxylases. Compounds of Formula(I) and Formula (II) have the following structures, where the definitions of the variables are provided herein.
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- Palladium-catalyzed aryl amination-heck cyclization cascade: A one-flask approach to 3-substituted indoles
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(Chemical Equation Presented) Two for the price of one: A Pd/dppf-based catalyst provides access to the title compounds from 1,2-dihalogenated aromatic compounds and allylic amines in a single reaction flask. The initial aryl amination step occurs with excellent selectivity for the aryl iodide to ensure the formation of a single indole regioisomer, which can be functionalized in situ by N-arylation (see scheme). dba = dibenzylideneacetone, dppf = 1,1′-bis(diphenylphospanyl)ferrocene.
- Jensen, Thomas,Pedersen, Henrik,Bang-Andersen, Benny,Madsen, Robert,Jorgensen, Morten
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p. 888 - 890
(2008/09/20)
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