Palladium-Catalyzed Asymmetric Formal [3+2] Cycloaddition of Vinyl Cyclopropanes and β,γ-Unsaturated α-Keto Esters: An Effective Route to Highly Functionalized Cyclopentanes
作者:Liang-yong Mei、Yin Wei、Qin Xu、Min Shi
DOI:10.1021/om300896z
日期:2012.11.12
Palladium-catalyzed asymmetric formal [3+2] cycloaddition of vinyl cyclopropanes and β,γ-unsaturated α-keto esters proceeded smoothly in the presence of chiral imidazoline–phosphine ligands to give the corresponding highly functionalized cyclopentanes in good yields along with high diastereo- and enantioselectivities under mild conditions.
在手性咪唑啉-膦配体的存在下,钯催化的乙烯基环丙烷和β,γ-不饱和α-酮酯的不对称形式[3 + 2]环加成反应顺利进行,从而得到相应的高度官能化的环戊烷,并具有较高的非对映体-收率。和温和条件下的对映选择性。