Electrocatalytic reactions: anion radical cyclobutanation reactions and electrogenerated base reactions
作者:Greg A.N. Felton
DOI:10.1016/j.tetlet.2007.11.171
日期:2008.1
Intermolecular anion radical [2+2] cyclobutanation reactions have been observed between vinyl sulfones and vinyl/propenyl ketones. The products are novel and formed electrocatalytically, although yields are at best modest (11–45%). Competing mechanisms are discussed. Additionally, the electrochemical reduction of vinyl alkyl sulfones in acetonitrile leads to near quantitative formation of cyanomethylation
乙烯基砜和乙烯基/丙烯基酮之间已观察到分子间阴离子自由基[2 + 2]环丁烷化反应。这些产品是新颖的,并且可以通过电催化形成,尽管产率最高(11-45%)。讨论了竞争机制。另外,乙腈中乙烯基烷基砜的电化学还原导致氰基甲基化产物氰基砜的定量形成。一步法具有超过三十的电催化因子。