The highly diastereoselective palladium-catalyzed cyclizations. Stereoselective syntheses of cis and trans-disubstituted hydroxycyclopentanes
作者:Young-Ger Suh、Jae-Kyung Jung、Soon-Ai Kim、Dong-Yun Shin、Kyung-Hoon Min
DOI:10.1016/s0040-4039(97)00777-6
日期:1997.6
A new variant of palladium-catalyzed stereoselective cyclization has been developed. This process provides an excellent 1,2-diastereocontrol of two new stereogenic centers as well as 1,3-asymmetric induction. In addition, desulfonylation of the cyclization product with retention of the initial stereochemistry and conversion of the desulfonylation product to the advanced carbaprostacyclin intermediate
已经开发了钯催化的立体选择性环化的新变体。此过程提供了两个新的立体生成中心以及1,3-不对称诱导的出色的1,2-非立体控制。另外,描述了环化产物的脱磺酰化并保留了最初的立体化学,并且将所述脱磺酰化产物转化为高级碳环前列环素中间体。