有機合成化学協会誌
Online ISSN : 1883-6526
Print ISSN : 0037-9980
ISSN-L : 0037-9980
総説および総合論文
エノールエーテルの極性転換によって開始される分子間オレフィンクロスメタセシス
岡田 洋平千葉 一裕
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2012 年 70 巻 7 号 p. 701-710

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Electrochemical approaches have proven to be effective for regulating either one or two electron transfers at the surface of the electrodes that afford not only various functional group transformations, but also a wide variety of carbon-carbon bond forming reactions. Especially, the anodic oxidation of electron-rich olefins generates their radical cations, which are then trapped by a variety of nucleophiles, leading to a number of interesting cyclizations. These anodic transformations are initiated by the umpolung processes that normally nucleophilic electron-rich olefins are anodically oxidized to give electrophilic radical cations to react with second nucleophiles. Meanwhile, unactivated olefins have been found to act as carbon nucleophiles in lithium perchlorate/nitromethane electrolyte solutions that can be used to construct intermolecular carbon-carbon bonds. The use of enol ethers as electron-rich olefins has led to the formation of cyclobutane-like intermediates through which intermolecular olefin cross-coupling and -metathesis are achieved.

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© 2012 社団法人 有機合成化学協会
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