945391-06-0Relevant articles and documents
Zig-Zag Type Molecular Design Strategy of N-Type Hosts for Sky-Blue Thermally-Activated Delayed Fluorescence Organic Light-Emitting Diodes
Yang, Chang Yoon,Lee, Kyung Hyung,Lee, Jun Yeob
supporting information, p. 2429 - 2435 (2020/02/13)
N-type hosts for long lifetime in sky-blue thermally-activated delayed fluorescence (TADF) organic light-emitting diodes (OLEDs) were investigated by synthesizing four hosts with zig-zag-type backbone structure for high triplet energy. The four hosts had
CONDENSED RING DERIVATIVE, AND PREPARATION METHOD, INTERMEDIATE, PHARMACEUTICAL COMPOSITION AND USE THEREOF
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Paragraph 0206; 0207, (2018/02/28)
Disclosed are a condensed ring derivative, and a preparation method, an intermediate, a pharmaceutical composition and a use thereof. The condensed ring derivative of the present invention has a significant inhibitive effect on URAT1, which can effectively alleviate or treat hyperuricemia and other related diseases.
Synthesis of ladder-type π-conjugated heteroacenes via palladium-catalyzed double N-arylation and intramolecular O-arylation
Kawaguchi, Keiko,Nakano, Koji,Nozaki, Kyoko
, p. 5119 - 5128 (2008/02/07)
(Chemical Equation Presented) Ladder-type heteroacenes containing pyrrole or furan rings, indolo[3,2-b]carbazoles and dibenzo[d,d′]-benzo[1,2-b:4,5- b′]difurans, were effectively synthesized from the common intermediates, 2,5-bis(o-chloroaryl)hydroquinones. The key reactions are palladium-catalyzed double N-arylation of aniline and intramolecular O-arylation, which enable regioselective ring closure. In addition to the parent indolo[3,2-b]carbazole and dibenzo[d,d′]benzo[1,2-b:4,5-b′]difuran, their derivatives with an alkyl or cyano group were first synthesized. Photophysical and electrochemical studies showed that the obtained heteroacenes have lower HOMO energy levels and larger band gaps than the corresponding hydrocarbon acene, pentacene. An X-ray analysis of dibenzo[d,d′]benzo[1,2-b:4,5-b′] difuran revealed that it was packed in herringbone fashion.