作者:Keitaro Tanaka、Masakazu Tanaka、Hiroshi Suemune
DOI:10.1016/j.tetlet.2005.07.004
日期:2005.9
π-facial selective intermolecular hydroacylations of norbornenes with salicylaldehyde have been attained. In the reaction with norbornylene, the exo-hydroacylated product was produced because of steric hindrance. In the case of norbornadiene, the endo-product was obtained because of chelation effect. Lastly, because of chelation and remote substituent effects, the product formed in the reaction of 7-tert-butoxynorbornadiene
降冰片烯与水杨醛的Rh催化π面选择性分子间加氢酰化反应已经实现。在与降冰片烯的反应中,由于位阻,产生了外加氢酰化的产物。在降冰片二烯的情况下,由于螯合作用而获得了内产物。最后,因为螯合和远程取代基的影响,形成在7-的反应产物叔-butoxynorbornadiene是内切,顺式-产物。氘标记实验表明加氢酰化是通过内和外中间体进行的。