Importance of steric effects in the [4 + 2] cycloaddition of 5-substituted pentamethylcyclopentadienes
作者:Waldemar Adam、Ulrike Jacob、Michael Prein
DOI:10.1039/c39950000839
日期:——
Pentamethylcyclopentadienes with a carbon substituent (X = Pri, Et, CH2OH, CHO) at the C-5 position give anti cycloadducts with a variety of dienophiles, which establishes the importance of steric effects in the [4 + 2] cycloaddition of these plane-nonsymmetric dienes.
在C-5位带有碳取代基(X = Pr i,Et,CH 2 OH,CHO)的五甲基环戊二烯会产生具有多种亲二烯体的抗环加合物,这确定了在[4 + 2]环加成过程中空间效应的重要性这些平面非对称二烯。