Substituent Effects on the Orientation of Diels-Alder Reactions. II
作者:Cirill Schmidt、S. D. Sabnis、Edith Schmidt、D. K. Taylor
DOI:10.1139/v71-062
日期:1971.2.1
influence of a terminally located methoxy is stronger than the effect of a terminal methyl group in the diene since only adduct 3 could be isolated. The influence of non-terminal substituents compared to terminal substituents in diene appears to be insignificant. This was demonstrated by obtaining only adduct 5 form the addition of 3-ethoxy-1,3-pentadiene (4) with 2,6-dimethylbenzoquinone (2). The following