NOVEL SOLUBLE COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICES
申请人:IDEMITSU KOSAN CO., LTD.
公开号:EP1440959A1
公开(公告)日:2004-07-28
A novel soluble compound which is a distyrylarylene derivative having a soluble substituent and a specific central group and having a solubility of 0.5% by weight or greater at 20°C in an organic solvent; and an organic electroluminescence device having an organic thin film layer which has a single layer or a plurality of layers, is disposed between a cathode and an anode and has at least one layer containing the novel soluble compound. The organic thin film layer can be formed in accordance with a wet process, and the organic electroluminescence device exhibiting a great efficiency of light emission can be produced easily.
申请人:KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY 한국화학연구원(319980077651)
公开号:KR20150060183A
公开(公告)日:2015-06-03
본 발명은 비스이소벤조퓨란디오닐안트라센 화합물, 이의 제조방법 및 이를 이용하는 유기 절연막에 관한 것으로, 본 발명에 따른 비스이소벤조퓨란디오닐안트라센 화합물은 고내열성 유기절연체 제조에 유용하게 사용될 수 있으며, 본 발명에 따른 비스이소벤조퓨란디오닐안트라센 화합물의 제조방법은 관능기에 대한 제약이 적고, 반응의 선택성이 높아 호모 커플링 등의 부반응이 적은 스즈키 커플링 및 염기 또는 산 조건에서 가수 분해, 탈수 고리화 반응을 사용하므로 순도 및 수득률이 향상된 비스이소벤조퓨란디오닐안트라센을 제조할 수 있다.
AMINOANTHRACENE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT ELEMENT FORMED USING SAME
申请人:Mizutani Sayaka
公开号:US20120299473A1
公开(公告)日:2012-11-29
There are provided an aminoanthracene derivative having an end substituent, such as a dibenzofuran ring, that is bonded at a position other than the 2-position in the formula (1) to anthracene through a nitrogen atom, and an organic electroluminescent device containing a cathode and an anode, and therebetween one or plural organic thin film layers containing at least a light emitting layer, at least one layer of the organic thin film layers containing the aminoanthracene derivative. The organic electroluminescent device has a long lifetime and a high luminous efficiency. (In the formula, R
1
, m and Ar
1
to Ar
4
have the meanings described in claim
1
.)
Photoredox Generated Carbonyl Ylides Enable a Modular Approach to Aryltetralin, Dihydronaphthalene, and Arylnaphthalene Lignans
作者:Edwin Alfonzo、Alexandra M. Millimaci、Aaron B. Beeler
DOI:10.1021/acs.orglett.0c02286
日期:2020.8.21
A one-pot synthesis of dihydronaphthalenes and arylnaphthalenes from epoxides and common dipolarophiles is described. The reaction proceeds through photoredox activation of epoxides to carbonyl ylides, which undergo concerted [3 + 2] dipolar cycloaddition with dipolarophiles to provide tetrahydrofurans or 2,5-dihydrofurans. In the same flask, acid promoted rearrangement affords densely functionalized
Efficient deep-blue emitters comprised of an anthracene core and terminal bifunctional groups for nondoped electroluminescence
作者:Minrong Zhu、Qiang Wang、Yu Gu、Xiaosong Cao、Cheng Zhong、Dongge Ma、Jingui Qin、Chuluo Yang
DOI:10.1039/c1jm10465a
日期:——
Four blue fluorescent host emitters with bifunctional charge transport groups appended to the 9- and 10-positions of the anthracene core have been designed and synthesized. By introducing peripheral bulky aryl-substitution groups to the emissive core, the four compounds show a decreased tendency to crystallise and have high glass transition temperatures ranging from 154 to 226 °C. The theoretical calculations reveal that the four self-hosted blue emitters possess noncoplanar structures to suppress intermolecular interaction within the films. The amorphous compounds exhibit strong deep-blue emission both in solution and the solid state. With different end-capping groups, the photophysical and electrochemical properties are tuned to produce efficient deep-blue performance with a simple device architecture. Organic light-emitting diodes (OLEDs) featuring 4 as the emitter achieve a maximum power efficiency of 2.0 lm W−1 with Commission Internationale de l'Eclairage (CIE) coordinates of (0.16, 0.10) that are very close to the National Television Standards Committee's blue standard. The well-matched energy level between the anode and 4 as well as the intrinsic good charge transport abilities results in a very low driving voltage (2.7 V), making the nondoped deep-blue electroluminescent device power efficient.