614735-01-2Relevant academic research and scientific papers
Chromium- and Cobalt-Catalyzed, Regiocontrolled Hydrogenation of Polycyclic Aromatic Hydrocarbons: A Combined Experimental and Theoretical Study
Han, Bo,Ma, Pengchen,Cong, Xuefeng,Chen, Hui,Zeng, Xiaoming
supporting information, p. 9018 - 9026 (2019/06/13)
Polycyclic aromatic hydrocarbons are difficult substrates for hydrogenation because of the thermodynamic stability caused by aromaticity. We report here the first chromium- and cobalt-catalyzed, regiocontrolled hydrogenation of polycyclic aromatic hydrocarbons at ambient temperature. These reactions were promoted by low-cost chromium or cobalt salts combined with diimino/carbene ligand and methylmagnesium bromide and are characterized by high regioselectivity and expanded substrate scope that includes tetracene, tetraphene, pentacene, and perylene, which have rarely been reduced. The approach provides a cost-effective catalytic protocol for hydrogenation, is scalable, and can be utilized in the synthesis of tetrabromo- and carboxyl-substituted motifs through functionalization of the hydrogenation product. The systematic theoretical mechanistic modelings suggest that low-valent Cr and Co monohydride species, most likely from zerovalent transition metals, are capable of mediating these hydrogenations of fused PAHs.
CYCLIC AZINE COMPOUND, METHOD FOR PRODUCING THE SAME, AND USE THEREFOR
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Paragraph 0202; 0203; 0206-0207, (2018/10/03)
PROBLEM TO BE SOLVED: To provide a novel cyclic azine compound capable of improving the performance of an organic electroluminescent element as compared to conventional cyclic azine compounds. SOLUTION: The present invention provides a cyclic azine compou
Extended fluorochromism of anthracene trimers with a meta-substituted triphenylamine or triphenylphosphine core
Li, Zhiou,Ishizuka, Hiromi,Sei, Yoshihisa,Akita, Munetaka,Yoshizawa, Michito
supporting information; experimental part, p. 1789 - 1794 (2012/09/07)
Combining meta-triphenylamine or triphenylphosphine with three anthracene fluorophores gives rise to fluorescent non-planar triskelions 1 and 2. The emissive properties of 1 are highly solvatochromic, yielding blue to pale green and even pale yellow fluor
NOVEL ANTHRACENE DERIVATIVES, METHOD FOR PREPARATION THEREOF, AND ORGANIC ELECTRONIC DEVICE USING THE SAME
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Page/Page column 19, (2010/11/28)
The present invention relates to a novel anthracene derivative, a method for preparation thereof, and an organic electronic device using the same. The anthracene derivative according to the present invention can function as a hole injecting, hole transporting, electron injecting, electron transporting, or light emitting in an organic electronic device including an organic light emitting device, and in particular, used alone as a light emitting, or as a host or dopant in a host/dopant system. The organic electronic device according to the present invention exhibits excellent characteristics in terms of efficiency, drive voltage, life time, and stability.
NOVEL AROMATIC COMPOUND AND ORGANIC ELECTROLUMINESCNET ELEMENT CONTAINING THE SAME
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Page 25, (2008/06/13)
A novel aromatic compound having an anthracene skeleton structure and an asymmetric molecular structure; and an organic electroluminescence device which comprises a cathode, an anode and an organic thin film layer comprising at least one layer containing
