Gosteli−Claisen Rearrangement: Substrate Synthesis, Simple Diastereoselectivity, and Kinetic Studies
作者:Julia Rehbein、Sabine Leick、Martin Hiersemann
DOI:10.1021/jo802303m
日期:2009.2.20
kinetic studies on the uncatalyzed [3,3]-sigmatropic rearrangement of 2-alkoxycarbonyl-substituted allyl vinyl ethers are reported. Apparently first reported by Gosteli in 1972, this variation of a Claisen rearrangement enjoyed a shadowy existence for three decades until its potential for the development of a catalytic asymmetric Claisen rearrangement was discovered. Inspired by this development, we have
报道了对2-烷氧基羰基取代的烯丙基乙烯基醚的未催化的[3,3]-σ重排的动力学研究的结果。显然是由Gosteli于1972年首次报道的,这种克莱森重排的变体在过去的三十年里一直处于阴影状态,直到发现其发展催化不对称克莱森重排的潜力为止。受此发展的启发,我们研究了取代基和溶剂速率的影响,并提供了证据表明椅状过渡态对未催化的Gosteli-Claisen重排非常有利。