- ORGANOMETALLIC COMPLEX, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE
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To provide a novel organometallic complex. The organometallic complex is represented by Formula (G1) and includes a central metal, a first ligand, and a second ligand. The first ligand and the second ligand are cyclometalated ligands. At least one of the
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Paragraph 0313; 0314; 0315
(2017/10/31)
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- HETEROCYCLIC COMPOUND, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE
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Provided is a novel heterocyclic compound which can be used in a light-emitting layer of a light-emitting element as a host material in which a light-emitting substance is dispersed. A heterocyclic compound represented by a general formula (G1) is provide
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Paragraph 0401
(2013/03/26)
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- HETEROCYCLIC COMPOUND, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, LIGHTING DEVICE, AND ORGANIC COMPOUND
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Provided is a novel heterocyclic compound which can be used in a light-emitting layer of a light-emitting element as a host material in which a light-emitting material is dispersed, i.e., a heterocyclic compound represented by a general formula (G1). Any one of R1 to R10 represents a substituent represented by a general formula (G1-1); another one of R1 to R10 represents hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, or a substituent represented by a general formula (G1-2); and the others separately represent hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted biphenyl group.
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Paragraph 0465
(2013/04/10)
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- ORGANOMETALLIC COMPLEX, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE AND LIGHTING DEVICE
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Provided is a novel substance that can emit phosphorescence. Alternatively, provided is a novel substance with high emission efficiency. An organometallic complex in which a 4-arylpyrimidine derivative is a ligand and iridium is a central metal is provided. Specifically, an organometallic complex having a structure represented by a general formula (G1) is provided. In the general formula (G1), R1 represents a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms, R2 represents any of hydrogen, a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted phenyl group, R3 represents hydrogen or a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and Ar1 represents a substituted or unsubstituted arylene group having 6 to 10 carbon atoms.
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Page/Page column 93-94
(2012/05/05)
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- HETEROCYCLIC COMPOUND
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Provided is a novel heterocyclic compound which can be used for a light-emitting element, as a host material of a light-emitting layer in which a light-emitting substance is dispersed. A heterocyclic compound represented by a general formula (G1) is provi
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Page/Page column 32
(2012/08/08)
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- Light-Emitting Device, Electronic Device, and Lighting Device Utilizing Phosphorescence
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A new light-emitting device utilizing phosphorescence is provided. Further, an electronic device and a lighting device which utilize phosphorescence are provided. One embodiment of the present invention is a light-emitting device including a phosphorescen
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Page/Page column 29
(2012/11/08)
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- A method for the reductive scission of heterocyclic thioethers
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A mild, chemoselective, and generally high-yielding method for the reductive scission of heterocyclic thioethers is described. Suitable heterocycles have a thioether substituent at the 2-position relative to a ring heteroatom. The convenient and straightforward method is demonstrated with reactants which are not compatible with the standard Raney nickel conditions such as sulfides, sulfones, and thiophenes. In addition, benzyl esters, benzyl amides, and benzyl carbamates are tolerated by the reductive reaction conditions.
- Graham, Thomas H.,Liu, Wensheng,Shen, Dong-Ming
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supporting information; experimental part
p. 6232 - 6235
(2012/01/03)
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- Suzuki-Miyaura and Negishi approaches to a series of forensically relevant pyridines and pyrimidines
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A library of 5-aryl-4-methylpyrimidines, phenyl ring-substituted derivatives of 4-benzylpyrimidines, 2,6-benzylpyridines, and 2,6-dibenzyl-4-methylpyridines were prepared. The synthesis of 5-aryl-4-methylpyrimidines was accomplished by Suzuki-Miyaura cross-coupling reaction between arylboronic acids and 5-bromo-4-methylpyrimidine. The 4-benzylpyrimidines and 2,6-benzylpyridines were synthesized by treatment of 4-bromopyrimidine and 2,6-dibromopyridine derivatives with ring-substituted benzylzinc reagents. Georg Thieme Verlag Stuttgart.
- Blachut, Dariusz,Szawkalo, Joanna,Czarnocki, Zbigniew
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experimental part
p. 3496 - 3506
(2011/12/04)
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- REDUCTIVE FORMATION OF PYRIMIDINYLMETHYLENEPHOSPHORANES BY REACTION OF TRICHLOROMETHYLPYRIMIDINES WITH TRIPHENYLPHOSPHINE
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The reaction of trichloromethylpyrimidines (1) with ca. 5 equivalent amounts of TPP gave pyrimidinylmethylenephosphoranes (9), whereas in the presence of 2 equivalent amounts of TPP, 1 was converted into the corresponding pyrimidinylchloromethylenephospho
- Konno, Shoetsu,Sato, Yumi,Sakamoto, Takao,Katagiri, Nobuya,Yamanaka, Hiroshi
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p. 1331 - 1334
(2007/10/02)
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