作者:Changming Qin、Huw M. L. Davies
DOI:10.1021/ol303217s
日期:2013.1.18
catalyst and catalyst loading to form either 2-arylbicyclo[1.1.0]butane carboxylates or cyclohexene derivatives. Both products are produced in a highly diastereoselective manner, with 2-arylbicyclo[1.1.0]butane carboxylates preferentially formed under low catalyst loadings. When the reaction is catalyzed by Rh2(R-BTPCP)4, the 2-arylbicyclo[1.1.0]butane carboxylates are generated with high levels of asymmetric
的铑催化的反应2-重氮-5- arylpent -4- enoates可以通过催化剂和催化剂负载的适当选择被控制以形成任一2-芳基双环[1.1.0]丁烷羧酸或环己烯衍生物。两种产物都以高度非对映选择性的方式生产,其中2-芳基双环[1.1.0]丁烷羧酸酯在低催化剂负载下优先形成。当反应被Rh 2(R -BTPCP)4催化时,生成的2-芳基双环[1.1.0]丁烷羧酸盐具有很高的不对称诱导度(70-94%ee)。