AbstractThe electrophilicity of (E)-2-aryl-1-cyano-1-nitroethenes is not sufficient to induce a zwitterionic course of their [4+2] cycloaddition to cyclopentadiene. The one-step mechanism of these reactions is indicated by the activation parameters, and the substituent and solvent effects on the reaction. Graphical Abstract
摘要(E)-2-芳基-1-
氰基-1-
硝基乙烯的亲电子性不足以诱导其[4 + 2]环加成到
环戊二烯上的两性离子过程。这些反应的一步机制由活化参数以及取代基和溶剂对反应的影响指示。 图形概要