A quantitative structure–reactivity relationship in decarboxylative Claisen rearrangement reactions of allylic tosylmalonate esters
作者:Donald Craig、Nikolay K. Slavov
DOI:10.1039/b812306c
日期:——
First-order rate constants have been determined for the decarboxylative Claisen rearrangement reactions at 293 K of substituted methyl (E)-3-phenyl-2-propenyl 2-tosylmalonate esters, which show a linear free-energy relationship indicative of the development of positive charge on the benzylic position in the sigmatropic rearrangement transition-state.
已经确定了取代的(E)-3-苯基-2-丙烯基2-甲苯磺酰基丙二酸酯在293 K时发生的脱羧化Claisen重排反应的一级速率常数,该线性常数表明了正电荷的发展。在σ重排过渡态的苄基位置上的电荷。