Cross Redox Coupling of Aryl-Aldehydes and <i>p</i>-Benzoquinone
作者:Anima Bose、Prasenjit Mal
DOI:10.1021/acs.joc.5b02175
日期:2015.11.6
unprecedented Cross Redox Coupling (CRC) reaction catalyzed by Cu(OAc)2·H2O. As a proof-of-concept, directcoupling of aromatic aldehydes (or alcohols) and p-benzoquinone led to an ester in the presence of the Cu(II)–TBHP combination. During the coupling process, the C–H bond of the aldehydes was converted directly to a C–O bond. Mechanistically, we propose that the reaction proceeded via a radical pathway
Oxidative coupling. Part 11. Approaches to the synthesis of bikaverin
作者:John R. Lewis、John G. Paul
DOI:10.1039/p19810000770
日期:——
The synthesis of orcinoylhydroquinones has been achieved by photochemical Fries rearrangement of their esters. A study of their oxidation (DDQ) shows that oxidativecoupling occurs to produce a spirocyclohexenedione which can be thermally isomerised to the xanthone. The synthesis of a tetracyclic xanthone (related to bikaverin) is described.