作者:Mugio Nishizawa、Yumiko Asai、Hiroshi Imagawa
DOI:10.1021/ol062337x
日期:2006.12.1
bicyclic tert-alcohols afforded identical ring-expansion products via cationic anti-Markovnikov rearrangement from perpendicular tert-cations into identical six-membered ring secondary cations by the treatment with TiCl4. These results provide evidence that the reaction takes place by the cationic stepwise mechanism. [reaction: see text]
立体异构的双环叔醇通过用TiCl4处理,从垂直的叔阳离子转变为相同的六元环仲阳离子,通过阳离子抗马氏力重排而提供了相同的扩环产物。这些结果提供了反应是通过阳离子逐步机理进行的证据。[反应:看文字]