Amine–Amine Electronic Coupling through a Dibenzo[a,e]pentalene Bridge
摘要:
Three dibenzo[a,e]pentalene derivatives containing two redox-active amine substituents have been prepared. The degree of amineamine electronic coupling through the dibenzo[a,e]pentalene bridge greatly depends on the substitution positions. Three monoamine compounds have been prepared for comparison studies. The experimental data and analysis were corroborated by time-dependent density functional theory results of mixed-valent compounds.
The copper-catalyzeddecarboxylative reactions of alkynyl carboxylic acids with aryl halides were performed under relatively mild reaction conditions. Benzofurans could be further prepared smoothly by a one-pot domino protocol on the basis of decarboxylativecross-coupling of 2-iodophenol.
Synthesis of Phenol, Aromatic Ether, and Benzofuran Derivatives by Copper-Catalyzed Hydroxylation of Aryl Halides
作者:Dongbing Zhao、Ningjie Wu、Shuai Zhang、Peihua Xi、Xiaoyu Su、Jingbo Lan、Jingsong You
DOI:10.1002/anie.200903923
日期:2009.11.2
A smooth operator: The copper‐catalyzed synthesis of phenols from aryl halides was carried out under relatively mild reaction conditions. Alkyl aryl ethers and benzofurans could also be prepared smoothly by one‐pot domino protocols based on hydroxylation of aryl iodides (see scheme).