58328-30-6Relevant academic research and scientific papers
Transition-metal free synthesis of: N -aryl carbazoles and their extended analogs
Akhmetov, Vladimir,Amsharov, Konstantin,Feofanov, Mikhail,Takayama, Ryo
supporting information, p. 7172 - 7175 (2021/08/30)
Herein, we describe a facile synthesis of N-arylated carbazoles via ladderization of fluorinated oligophenylenes. The reaction consists of two subsequent nucleophilic substitutions triggered by an electronic transfer from dimsyl anions. The reaction allows the effective one-pot formation of at least six C-N bonds with pronounced selectivity to the C-F bond placement.
Heterocyclic compound and organic light-emitting device including the same
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Page/Page column 83; 85, (2016/09/26)
A heterocyclic compound, an organic light-emitting device, and a flat panel display apparatus, the compound being represented by Formula 1, below:
Condensed-Cyclic Compound and Organic Light-Emitting Device Including the Same
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Page/Page column 37, (2011/10/13)
A condensed-cyclic compound and an OLED including the same, the condensed-cyclic compound represented by Formula 1 below:
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.
