Sicre Cristina, Cid M Magdalena
Departamento de Química Orgánica, Universidade de Vigo, Campus Lagoas-Marcosende, 36310 Vigo, Spain.
Org Lett. 2005 Dec 8;7(25):5737-9. doi: 10.1021/ol052512u.
[chemical reaction: see text]. A stereoselective total synthesis of the visual pigment A2E has been achieved with use of palladium-catalyzed cross-coupling reactions in all key steps: a regioselective Suzuki or Negishi coupling of 2,4-dibromopyridine, a Sonogashira reaction, and a double Stille cross-coupling to complete the bispolyenyl skeleton.
[化学反应:见正文]。通过在所有关键步骤中使用钯催化的交叉偶联反应,实现了视觉色素A2E的立体选择性全合成:2,4 - 二溴吡啶的区域选择性铃木或根岸偶联反应、 Sonogashira反应以及双Stille交叉偶联反应以完成双聚烯骨架。