A novel method for the stereoselective synthesis of all-E-, 13Z- and 9Z-retionic acid esters was developed by palladium-catalyzed cross coupling reactions of tetraenyl stannanes with E- or Z-vinyl triflates in good yields. Applying this methodology, 13-substituted all-E- and 9Z-retionic acids were prepared in satisfactory yields.
一种新的立体选择性合成全E-、13Z-和9Z-
维甲酸酯的方法,通过
钯催化的四
烯基
锡与E型或Z型
乙烯基三氟甲磺酸酯的交叉耦合反应,产率良好。应用此方法,成功以满意的产率制备了13-取代的全E-和9Z-
维甲酸。