Electrocatalytic Formal [2+2] Cycloaddition Reactions between Anodically Activated Enyloxy Benzene and Alkenes
作者:Michiko Arata、Teppei Miura、Kazuhiro Chiba
DOI:10.1021/ol7019845
日期:2007.10.1
enyloxy benzene and alkenes have been accomplished in a lithiumperchlorate/nitromethaneelectrolytesolution. The enyloxy benzene moiety of these electrolytic substrates played an important role in the formation of a radical cation that could accept nucleophilic alkenes, followed by intramolecular electron transfer between the cyclobutane and phenyl ether moieties of the intermediates.
Stepwise radical cation Diels–Alder reaction via multiple pathways
作者:Ryo Shimizu、Yohei Okada、Kazuhiro Chiba
DOI:10.3762/bjoc.14.59
日期:——
Herein we disclose the radicalcationDiels-Alderreaction of aryl vinyl ethers by electrocatalysis, which is triggered by an oxidative SET process. The reaction clearly proceeds in a stepwise fashion, which is a rare mechanism in this class. We also found that two distinctive pathways, including "direct" and "indirect", are possible to construct the Diels-Alder adduct.