34160-15-1Relevant academic research and scientific papers
Fluorene naphthofuran derivative and application thereof
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Paragraph 0067-0069, (2018/07/06)
The invention provides a compound shown in the general formula (1), wherein A-A are respectively and independently selected from Ar, N(Ar)(Ar), hydrogen, F, Cl, Br, I, CHO, C(=O)Ar, P(=O)(Ar)2, S(=O)Ar, S(=o)2Ar, CN, NO2, Si(R)3, C1-C30 substituted or unsubstituted alkyl groups or naphthenic groups, alkenyl groups and alkoxy or thioalkoxy groups; at least one of A-A is selectedfrom Ar or N(Ar1)(Ar2); when two adjacent substituent groups in the A-A are independently selected from Ar or N(Ar1)(Ar2), the two substituent groups can be fused into a ring; Ar, Ar and Ar are respectively and independently selected from C6-C30 substituted or unsubstituted aryl groups or are C5-C30 substituted or unsubstituted heteroaryl groups; substituent groups on the aryl or heteroaryl groups are independently selected from F, Cl, Br, I, CHO, CN and NO2 or selected from C1-C30 alkyl groups or naphthenic groups, alkenyl groups and alkoxy or thioalkoxy groups.
Benzfluorene, emitting layer material using the compound and an organic electroluminescence element (by machine translation)
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Paragraph 0157; 0158, (2017/01/26)
PROBLEM TO BE SOLVED: To provide a benzofluorene compound applicable to an organic electroluminescent element and exhibiting excellent performance. SOLUTION: The benzofluorene compound is expressed by general formula (1), wherein a benzene ring condensed to a 5-membered ring is replaced with diphenylamino, and the ortho-position of the phenyl group is replaced with alkyl, aryl, heteroaryl or cycloalkyl. In the formula, R1, R2, R3and R4are each independently hydrogen, alkyl, aryl, heteroaryl or cycloalkyl, provided that R1, R2, R3and R4are not hydrogen at the same time; R5and R6are each independently alkyl, aryl, heteroaryl or cycloalkyl; n1 and n2 are each independently an integer of 0-3; when n1 or n2 is ≥2, two or more R5groups or two or more R6groups may be bonded with each other to form a ring; and R7groups are each independently alkyl or aryl which may be replaced with 1-4C alkyl, or two R7groups may be bonded together to form a ring. COPYRIGHT: (C)2012,JPO&INPIT
The use of palladium chloride as a precatalyst for the amination of aryl bromides
Zhang, Xiao-Xiang,Harris, Michele C.,Sadighi, Joseph P.,Buchwald, Stephen L.
, p. 1799 - 1805 (2007/10/03)
The use of palladium chloride as a precatalyst for the amination of aryl bromides is reported. To overcome the poor solubility of palladium chloride in commonly used solvents, a procedure was developed in which PdCl2 was preheated with neat amine in the presence of a phosphine ligand before the addition of the other reaction components. This protocol is effective for a broad range of substrate combinations using several types of phosphine ligands.
A highly active palladium catalyst system for the arylation of anilines
Sadighi, Joseph P.,Harris, Michele C.,Buchwald, Stephen L.
, p. 5327 - 5330 (2007/10/03)
The chelating ligand bis[2-(diphenylphosphino)phenyl] ether (DPEphos), in combination with palladium acetate, forms a highly active catalyst system for the coupling of anilines with aryl bromides. The bisphosphine is easily prepared in large quantity and
ALIPHATIC C-H, N-INSERTION VERSUS AROMATIC N-SUBSTITUTION IN THE REACTION OF ARYLNITRENIUM-BORON TRIFLUORIDE COMPLEXES WITH METHYLATED BENZENES
Spagnolo, Piero,Zanirato, Paolo
, p. 961 - 964 (2007/10/02)
The boron trifluoride promoted decomposition of a number of substituted phenyl azides in toluene, para-xylene, meta-xylene or mesitylene at 60 gradC, leads preferentially to N-benzylamines or diarylamines depending on both ring substituent effect and nucleophilic character of the solvent.
