Highly Diastereo- and Enantioselective Palladium-Catalyzed [3 + 2] Cycloaddition of Vinyl Epoxides and α,β-Unsaturated Ketones
作者:Jia-Jia Suo、Juan Du、Qing-Rong Liu、Di Chen、Chang-Hua Ding、Qian Peng、Xue-Long Hou
DOI:10.1021/acs.orglett.7b03386
日期:2017.12.15
An asymmetric [3 + 2] cycloaddition reaction of vinyl epoxides with α,β-unsaturated ketones, the single activated electron-deficient alkenes, has been achieved under Pd-catalysis in excellent diastereo- and enantioselectivity. The utilities of the protocol are demonstrated by transformation of the products into other useful chiral molecules. Density functional theory calculations rationalize the stereocontrol
在Pd催化下,乙烯基氧化物与α,β-不饱和酮(单活化的电子缺陷烯烃)的不对称[3 + 2]环加成反应在非对映选择性和对映选择性方面均得到了很好的实现。通过将产物转化成其他有用的手性分子,证明了该方案的实用性。密度泛函理论计算使反应的立体控制合理化。