Challenge to detect 1,4-zwitterions spectroscopically in a ketene-alkene reaction
Challenge to detect 1,4-zwitterions spectroscopically in a ketene-alkene reaction
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DOI：
10.1021/ja054619i
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发表时间：
2006-01-11
影响因子：
15
通讯作者：
Minato, T
中科院分区：
文献类型：
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作者：
Machiguchi, T;Okamoto, J;Minato, T
本文报道了直接光谱检测烯烯-烯烃反应中产生的瞬态物质1,4-两性离子的第一个例子。此外，前所未有的“1,4-两性中性二聚体”干预的惊人结果在一个新的机制途径中提出；烯烯-烯烃反应由初始环加合物α-亚甲基辛烷生成环丁酮。
The first example of direct spectroscopic detection of transient species, 1,4-zwitterions, generated in a ketene−alkene reaction is reported. Also, a striking result of the intervention of an unprecedented “1,4-zwitterion neutral dimer” is presented in a new mechanistic pathway; the ketene−alkene reaction gives the product cyclobutanone from the initial cycloadduct α-methyleneoxetane.