Characteristics of the Two Frontier Orbital Interactions in the Diels−Alder Cycloaddition
作者:Claude Spino、Hadi Rezaei、Yves L. Dory
DOI:10.1021/jo0353740
日期:2004.2.1
reacted with a series of twelve electron-poor and electron-rich dienophiles to give, in some cases, the corresponding Diels−Alder adducts. Clear differences in the roles played by the two frontier orbital interactions emerged. It was demonstrated that in the case of normal Diels−Alder cycloadditions, the FMO theory could predict the relative reactivities between dienophiles, while in the case of inverse-electron
在某些情况下,两个缺电子的二烯与一系列十二个贫电子和富电子的亲二烯体反应,生成相应的Diels-Alder加合物。出现了两个前沿轨道相互作用所起的作用的明显差异。结果表明,在正常的Diels-Alder环加成反应中,FMO理论可以预测亲双烯体之间的相对反应性,而在电子逆需求Diels-Alder反应的情况下,则不能。结果表明,富电子双亲物的不对称性增加了它们的反应性。