A General Method for Copper-Catalyzed Arene Cross-Dimerization
作者:Hien-Quang Do、Olafs Daugulis
DOI:10.1021/ja2047717
日期:2011.8.31
A generalmethod for a highly regioselective copper-catalyzed cross-coupling of two aromatic compounds using iodine as an oxidant has been developed. The reactions involve an initial iodination of one arene followed by arylation of the most acidicC-H bond of the other coupling component. Cross-coupling of electron-rich arenes, electron-poor arenes, and five- and six-membered heterocycles is possible
An efficient synthesis of a variety of 2,5-diaryloxazole derivatives via a rhodium-catalyzed annulation of triazoles and aldehydes is achieved. Various oxazole derivatives could be obtained in good to excellent yields. A concise synthesis of antimycobaterial natural products balsoxin and texamine has been achieved using this method.
Luminescent labels based on aromatic and heterocyclic compounds, including reactive intermediates used to synthesize these compounds, and methods of synthesizing and using these reporter compounds. These labels combine high photostabilities, large Stokes' shifts and contain a pyrimidinium moiety as a water-soluble group. These luminescent compounds relate generally to the following structure:
The methods relate generally to the synthesis and/or use of reporter compounds for fluorescence lifetime or fluorescence polarization based applications.