2-Imidazolidinone benzofurans as unexpected outcome of the Lewis acid mediated Nenitzescu reaction
作者:Tomas Horsten、Temitayo Omowumi Alegbejo Price、Luc Van Meervelt、Flavio da Silva Emery、Wim Dehaen
DOI:10.1039/d1nj04965h
日期:——
The Lewisacidmediated Nenitzescu reaction with piperazinone enaminoesters surprisingly afforded rearranged 2-imidazolidinone 5-hydroxybenzofurans. The reaction was optimised and a scope study was performed. A one-pot two-step procedure was realised starting directly from 1,2-diaminoethane, diethyl acetylene dicarboxylate and 1,4-benzoquinone. A plausible reaction mechanism is proposed.
An Optical Method for the Study of Reversible Organic Oxidation—Reduction Systems. IV. Arylquinones
作者:D. E. Kvalnes
DOI:10.1021/ja01326a082
日期:1934.11
FUJITA SHINSAKU; SANO KAZUYA, J. ORG. CHEM., 1979, 44, NO 15, 2647-2651
作者:FUJITA SHINSAKU、 SANO KAZUYA
DOI:——
日期:——
Palladium-Catalyzed Direct CH Functionalization of Benzoquinone
作者:Sarah E. Walker、James A. Jordan-Hore、David G. Johnson、Stuart A. Macgregor、Ai-Lan Lee
DOI:10.1002/anie.201408054
日期:2014.12.8
A direct Pd‐catalyzed CHfunctionalization of benzoquinone (BQ) can be controlled to give either mono‐ or disubstituted BQ, including the installation of two different groups in a one‐pot procedure. BQ can now be directly functionalized with aryl, heteroaryl, cycloalkyl, and cycloalkene groups and, moreover, the reaction is conducted in environmentally benign water or acetone as solvents.
可以控制直接 Pd 催化的苯醌 (BQ) 的C H 官能化以得到单取代或双取代的 BQ,包括在一锅法中安装两个不同的基团。BQ 现在可以直接用芳基、杂芳基、环烷基和环烯基官能化,而且,反应在环境友好的水或丙酮作为溶剂中进行。
Marini-Bettolo, Gazzetta Chimica Italiana, 1950, vol. 80, p. 76,83, 84