“<i>N</i>-Acyliminium Ion Pool” as a Heterodiene in [4 + 2] Cycloaddition Reaction
作者:Seiji Suga、Aiichiro Nagaki、Yamato Tsutsui、Jun-ichi Yoshida
DOI:10.1021/ol0341243
日期:2003.3.1
[reaction: see text] An N-acyliminium ion pool was found to undergo cycloaddition reaction with a variety of dienophiles such as alkenes and alkynes. A concerted mechanism seems to be most likely for alkyl-substituted alkenes as suggested by the DFT calculations, whereas a stepwise mechanism plays the major role for aryl-substituted alkenes. It is also noteworthy that the present study demonstrates