Oxidative C–H/C–H Annulation of Imidazopyridines and Indazoles through Rhodium-Catalyzed Vinylene Transfer
作者:Koushik Ghosh、Yuji Nishii、Masahiro Miura
DOI:10.1021/acs.orglett.0c00975
日期:2020.5.1
Transition-metal-catalyzed C-Hactivation followed by oxidative annulation with alkynes has been an efficient synthetic tool for the assembly of various polyaromatic scaffolds. Despite the substantial progress in this field, it is still a significant challenge to achieve the synthesis of nonsubstituted vinylene-fused compounds. In this contribution, we report a Rh-catalyzedC-H/C-H vinylene cyclization adopting
The present invention relates to metal complexes which contain polymerisable groups and to the polymers obtained using these metal complexes and to electronic devices, in particular organic electroluminescent devices, comprising these polymers. The metal complexes are compounds of the formula (1), containing a moiety M(L)n of the formula (2) or formula (3).
Cobalt‐Catalyzed Double C−H Activation of Imidazopyridines with Vinylene Carbonate for the Synthesis of Pyrido[1,2‐
<i>a</i>
]benzimidazoles
作者:Min Liu、Xinlei Sui、Jiangwei Wen、Qiuyun Li、Xiao Liu、Xiaoyu Wang、Xiu Wang、Kelu Yan
DOI:10.1002/ejoc.202201349
日期:2022.12.19
cobalt-catalyzed double C−H activation and vinylene transfer of imidazopyridines with vinylene carbonate has been developed. This protocol offers an alternative approach for the synthesis of diverse vinylene-fused prido[1,2-a]benzimidazole derivatives.
已经开发了钴催化的双 C-H 活化和咪唑并吡啶与碳酸亚乙烯酯的亚乙烯基转移。该协议为合成各种亚乙烯基融合的 prido[1,2- a ] 苯并咪唑衍生物提供了一种替代方法。
228. Pyrido(1? : 2? : 1 : 2)benziminazoles and allied compounds (cyclic 1 : 3-diazalines). Part II
作者:Gilbert Morgan、Jessie Stewart
DOI:10.1039/jr9390001057
日期:——
HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING ELEMENT USING SAME
申请人:HEESUNG MATERIAL LTD.
公开号:US20170324046A1
公开(公告)日:2017-11-09
The present specification relates to a novel hetero-cyclic compound and an organic light emitting device using the same.