- Nitrogen-containing heterocyclic derivative and organic electroluminescent device thereof
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The invention provides a nitrogen-containing heterocyclic derivative and an organic electroluminescent device thereof, and belongs to the technical field of organic electroluminescence. The nitrogen-containing heterocyclic derivative has strong hole block
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Paragraph 0154-0157; 0173-0174
(2021/11/26)
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- Understanding the Activation of Air-Stable Ir(COD)(Phen)Cl Precatalyst for C-H Borylation of Aromatics and Heteroaromatics
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A newly developed robust catalyst [Ir(COD)(Phen)Cl] (A) was used for the C-H borylation of three dozen aromatics and heteroaromatics with excellent yield and selectivity. Activation of the catalyst was identified by the use of catalytic amounts of water, alcohols, etc., when B2pin2 was used in noncoordinating solvents, while for THF catalytic use of HBpin was required. The results were on par with the in situ based expensive system [Ir(OMe)(COD)]2/dtbbpy or Me4Phen.
- Slack, Eric D.,Colacot, Thomas J.
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supporting information
p. 1561 - 1565
(2021/02/20)
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- CONDENSED CYCLIC COMPOUND AND AN ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
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A condensed cyclic compound represented by Formula 1 and an organic light-emitting device including the same.
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Paragraph 0336-0337
(2017/07/14)
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- Preparation of 2-amino-pyrimidine-5-boronic acid frequency that ester method
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A method of preparing 2-aminopyrimidine-5-boronic acid pinacol ester is disclosed. The method includes subjecting 2-chloropyrimidine that is a raw material and NBS to bromization under catalysis of BF3-Et2O to obtain 2-chloro-5-bromopyrimidine; reacting the 2-chloro-5-bromopyrimidine with n-Bu3MgLi at a temperature ranging from -20 DEG C to -10 DEG C; adding methoxyboronic acid pinacol ester or isopropoxyboronic acid pinacol ester; performing boronization to obtain 2-chloropyrimidine-5-boronic acid pinacol ester; adding into ammonia water or a methanol-ammonia solution; and reacting at 80-100 DEG C in a sealed manner to obtain the 2-chloropyrimidine-5-boronic acid pinacol ester. Synthetic process conditions of the method are mild. An ultralow-temperature reaction is avoided. Reactions can be performed continuously. A pure product can be obtained only by simple recrystallization of the final product.
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Paragraph 0023
(2017/01/02)
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- ORGANIC COMPOUNDS
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The present invention provides a compound of formula (I): wherein the variants R1, R2, R3, R4, R5, R6, R7 are as defined herein, and wherein said compound is an inhibitor of CETP, and thus can be employed for the treatment of a disorder or disease mediated by CETP or responsive to the inhibition of CETP.
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Page/Page column 67-68
(2009/05/28)
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- AMINO-PIPERIDINE DERIVATIVES AS CETP INHIBITORS
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The present invention provides a compound of formula (I), wherein the variants R1, R2, R3, R4, R5, R6, R7 are as defined herein, and wherein said compound is an inhibitor of CETP, and thus can be employed for the treatment of a disorder or disease mediated by CETP or responsive to the inhibition of CETP.
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Page/Page column 189-190
(2008/06/13)
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