23674-14-8Relevant articles and documents
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Putschkow
, p. 3428,3431; engl. Ausg. S. 3389, 3392 (1959)
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When Anthracene and Quinone Avoid Cycloaddition: Acid-Catalyzed Redox Neutral Functionalization of Anthracene to Aryl Ethers
Ding, Nan,Ding, Nan,Ding, Nan,Li, Zhi
supporting information, p. 4276 - 4282 (2020/06/04)
Benzoquinone and 9-phenylanthracene barely undergo anticipated cycloaddition under acid catalysis. Instead, 9-anthracenyl aryl ethers are obtained as unexpected products. Mechanistic studies indicate that the reaction likely undergoes an ionic mechanism between protonated anthracene species and nucleophilic oxygen of 1,4-benzoquinone or 1,4-hydroquinone. A variety of 9-anthracenyl aryl ethers are constructed with this method. Produced anthracenyl aryl ethers are potential scaffolds for new fluorescent molecules.
Stannylation of Aryl Halides, Stille Cross-Coupling, and One-Pot, Two-Step Stannylation/Stille Cross-Coupling Reactions under Solvent-Free Conditions
Gribanov, Pavel S.,Golenko, Yulia D.,Topchiy, Maxim A.,Minaeva, Lidiya I.,Asachenko, Andrey F.,Nechaev, Mikhail S.
, p. 120 - 125 (2018/01/17)
Solvent-free protocols for palladium-catalyzed stannylation of aryl halides, Stille cross-coupling, and one-pot, two-step stannylation/Stille cross-coupling (SSC) are reported for the first time. (Het)aryl halides bearing acceptor, donor, as well as sterically demanding substituents are stannylated and/or coupled in high yields. The reactions are catalyzed by conventional palladium(II) acetate/PCy3 [Pd(OAc)2/PCy3] under air, using available base CsF, and without the use of high purity reagents. The developed synthetic procedures are versatile, robust, and easily scalable. The absence of solvent, and the elimination of isolation procedures of aryl stannanes makes the SSC protocol simple, step economical, and highly efficient for the synthesis of biaryls in a one-pot two-step procedure.
Novel aromatic compounds for organic light-emitting diode and organic light-emitting diode including the same
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Paragraph 0223-0226, (2016/10/09)
The present invention relates to an organic light emitting compound represented by chemical formula A, and to an organic light emitting device comprising the same. In the chemical formula A, a cyclic group A_1 to A_3, R_1 to R_11, L, n, a structural formula Q, and a structural formula Aandprime; are the same as described in the specification.COPYRIGHT KIPO 2016