Multiple Rhodium-Catalyzed Cleavages of Single C–C bonds
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 intramolecularhydroacylation 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.