Intramolecular Diels–Alder reactions with substituted Feringa-butenolides: a dramatic increase in reactivity by double activation
作者:Ulrich Reiser、Johann Jauch、Eberhardt Herdtweck
DOI:10.1016/s0957-4166(00)00286-x
日期:2000.8
A thermal intramolecular endo-selective Diels-Alder reaction with a substituted Feringa-butenolide is described. The structure of the main product is determined by single crystal X-ray analysis. By double activation of the dienophile substructure a dramatic increase in reactivity is reported, which leads to a decrease in reaction temperature by more than 100 degrees C. (C) 2000 Elsevier Science Ltd. All rights reserved.