Palladium-catalyzed reactions of vinylidenecyclopropanes with acetic acid
作者:Jian-Mei Lu、Min Shi
DOI:10.1016/j.tet.2006.07.052
日期:2006.9
Pd(PPh3)4-catalyzed reactions of vinylidenecyclopropanes 1 with acetic acid proceeded smoothly at 80 °C in toluene to give the corresponding acetylated dienes 2 in moderate to good yields in the presence of DPEphos ligand. The plausible mechanism is proposed on the basis of the control and deuterium labeling experiments.
The first example of 1,3-dipolar cycloaddition reactions of nitrones to vinylidenecyclopropanes
作者:Anna G. Larina、Alexander V. Stepakov、Vitaly M. Boitsov、Alexander P. Molchanov、Vladislav V. Gurzhiy、Galina L. Starova、Anna N. Lykholay
DOI:10.1016/j.tetlet.2011.08.116
日期:2011.11
The firstexample of 1,3-dipolar cycloaddition reactions of nitrones to vinylidenecyclopropanes is described. The nitrones react with the C1′–C2′ double bond of vinylidenecyclopropanes to give the corresponding 4-cyclopropylidene-isoxazolidines in moderate yields.