作者:Kazuyoshi Seguchi、Akira Sera、Kazuhiro Maruyama
DOI:10.1246/bcsj.49.3558
日期:1976.12
investigated, and the rates of the reaction and the endo : exo adduct distributions were determined. The introduction of a chlorine atom at the C5 position of cyclopentadiene resulted in an enhanced endo preference for substituents in the adducts, despite the depressed reactivity of the diene. This is contrary to what is to be expected from the so-called “selectivity-reactivity relationship in the Diels-Alder
研究了聚氯环戊二烯与取代乙烯的 Diels-Alder 反应,并确定了反应速率和内:外加合物分布。尽管二烯的反应性降低,但在环戊二烯的 C5 位置引入氯原子导致加合物中取代基的内向偏好增强。这与所谓的“狄尔斯-阿尔德反应中的选择性-反应性关系”所预期的相反。这项工作的结果是根据二烯的 C5-氯原子与亲二烯体的取代基之间的空间相互作用来解释的。