Steric and electronic effects of 1-substituted dienes in cycloaddition reactions with cycloheptatrienone
作者:Michael E. Garst、Victoria A. Roberts、Calman Prussin
DOI:10.1016/s0040-4020(01)91832-0
日期:1983.1
Cycloaddition reactions of cycloheptatrienone and ten dienes were examined to define diene substituent effects in the thermal [6+4] cycloaddition reaction of cycloheptatrienone. The [6+4] adducts from dienes with greater electron density were formed more rapidly and were thermodynamically less stable than the adducts from more electron-poor dienes. This cycloaddition is subject to diene steric hinderance