Halomonochloride compounds (ClCl, BrCl, ICl) generated in situ from N-halosuccinimide and catalytic chlorotrimethylsilane (TMSCl, 0.1 equiv) can efficiently halogenate aromatic compounds to give halogenated products in good to excellent yields and selectivities. The reaction can be carried out at room temperature or at lower temperatures, requires only one hour, is practical to apply to a wide range of substrates, and provides a simple access to a variety of haloarene compounds.
The first total synthesis and structural determination of TMC-264
The first total synthesis and structural determination of TMC-264 has been accomplished. Regioselective bromination, regioselective methoxymethylation, and nickel(0)-Lewis acid-mediated cyclization afforded multi-functionalized 1-methyl-dibenzo[b,d]-pyran skeleton. (C) 2008 Elsevier Ltd. All rights reserved.
헤테로고리 화합물 및 이를 포함하는 유기 발광 소자
申请人:LG CHEM, LTD. 주식회사 엘지화학(120010134563) Corp. No ▼ 110111-2207995BRN ▼107-81-98139
公开号:KR20180106234A
公开(公告)日:2018-10-01
본 명세서는 화학식 1의 헤테로고리 화합물 및 이를 포함하는 유기 발광 소자에 관한 것이다.
这份规范涉及到化学式1的杂环化合物以及包含这些化合物的有机发光器件。
Bromination of phenyl ether and other aromatics with bromoisobutyrate and dimethyl sulfoxide
作者:Jia-Qin Li、Xiao-Hui Chen、Xian-Xun Wang、Hai-Lei Cui
DOI:10.1016/j.tetlet.2021.153375
日期:2021.10
Bromoisobutyrate has been used for the first time as a general brominating source for the direct bromination of a diverse of simple phenyl ethers. Aromatic ethers bearing various substituents could be compatible in this reaction system delivering brominated arenes in moderate to good yields. The reaction system can also be expanded to bromination of phenols and unactivated arene. This process can be