作者:Christophe Aïssa、Damien Crépin、Daniel J. Tetlow、Kelvin Y. T. Ho
DOI:10.1021/ol400266g
日期:2013.3.15
The Rh(I)-catalyzed intramolecular hydroacylation of cis and trans asymmetrically substituted alkylidenecyclobutanes proceeds according to three mechanistic pathways. As shown by deuterium-labeling experiments, the mechanism accounting for the rearrangement of the cis isomers includes the cleavage of three carbon–carbon bonds and a remarkable transannular 3-exo-trig carbometalation.
Rh(I)催化的顺式和反式不对称取代的亚烷基环丁烷的分子内氢酰化反应根据三种机理途径进行。如氘标记实验所示,解释顺式异构体重排的机理包括三个碳-碳键的断裂和显着的跨环3-exo-trig碳金属化。