Substitution of acetylenic groups for halogen in the quinonoid ring
作者:V. S. Romanov、I. D. Ivanchikova、A. A. Moroz、M. S. Shvartsberg
DOI:10.1007/s11172-006-0023-7
日期:2005.7
The bromine or iodine atom in the quinonoid ring devoid of +M substituent in the position neighboring to the halogen is replaced by acetylenic groups on treatment with CuI acetylides, prepared either beforehand or in situ, in a mixture of DMSO and CHCl3 in the presence of a Pd complex catalyst. A series of mono- and diacetylenic derivatives of 1,4-naphtho- and 1,4-benzoquinone were prepared.
Atroposelective Construction of Arylindoles by Chiral Phosphoric Acid-Catalyzed Cross-Coupling of Indoles and Quinones
作者:Dong-Liang Lu、Ye-Hui Chen、Shao-Hua Xiang、Peiyuan Yu、Bin Tan、Shaoyu Li
DOI:10.1021/acs.orglett.9b02143
日期:2019.8.2
Structurally novel atropisomeric arylindole frameworks have been successfully constructed through chiral phosphoric acid-catalyzed asymmetric cross-coupling of indoles and quinone derivatives in a precise regioselective manner. This approach features high convergence and functional group tolerance to efficiently deliver diverse heteroaryl atropisomers with excellent enantiocontrol. The dominant formation
[EN] PHENAZINE COPOLYMERS AND USES THEREOF<br/>[FR] COPOLYMÈRES EN PHÉNAZINE ET UTILISATIONS CORRESPONDANTES
申请人:UNIV CORNELL
公开号:WO2020205796A1
公开(公告)日:2020-10-08
Provided are phenazine copolymers and methods of making and using phenazine copolymers. The phenazine copolymers may be made from one or more phenazine precursors and one or more co-monomer precursors, one or more phenazine precursors and one or more cross-linking precursors, or one or more phenazine precursors and both one or more cross-linking precursors and one or more co-monomer precursors. The phenazine copolymers may be used in/on cathodes. The cathodes may be used in a variety of devices, such as, for example, batteries or supercapacitors.
Gold‐Catalyzed Bidirectional Access to Planar Heptacyclic Benzobispyrido[1,2‐
<i>a</i>
]indoles and Benzobispyrrolo[1,2‐
<i>a</i>
]Quinolines for Materials Science
作者:Robin Heckershoff、Lukas Eberle、Garrett May、Petra Krämer、Frank Rominger、Matthias Rudolph、A. Stephen K. Hashmi
DOI:10.1002/adsc.202200708
日期:2022.10.18
developed gold-catalyzed synthesis of indolo[1,2-a]quinolines was successfully expanded towards bidirectional approaches, enabling access to two heptacyclic structural motifs. In the case of benzobispyrido[1,2-a]indoles, previously inaccessible modifications of the only known representative were made possible. In addition, the synthesis of a new class of nitrogen-containing heptacycles – namely benzobispyrrolo[1
我们最近开发的吲哚[1,2- a ]喹啉的金催化合成成功地扩展到双向方法,能够获得两个七环结构基序。在苯并双吡啶并[1,2- a ]吲哚的情况下,以前无法获得的唯一已知代表的修饰成为可能。此外,合成了一类新的含氮七环——即苯并双吡咯并[1,2- a]喹啉——通过使用炔基化的苯并二吡咯衍生物作为起始材料来实现。所有新化合物及其相应的前体都经过充分表征,并通过 X 射线晶体学、光物理测量和计算方法研究了它们的性质。该研究揭示了固态结构与观察到的光物理性质之间的重要结构效应关系,例如。G。聚集诱导发射和固态荧光。