Ethynylation of Aryl Halides by a Modified Suzuki Reaction: Application to the Syntheses of Combretastatin A-4, A-5 and Lunularic Acid
作者:Alois Fürstner、Katharina Nikolakis
DOI:10.1002/jlac.199619961224
日期:1996.12
palladium-catalyzed cross coupling with functionalized aryl halides or triflates in reasonable to good yields. The ethynylarenes thus obtained serve as building blocks for the formation of the highly effective tubulin polymerization inhibitors combretastatin A-4 (1) and A-5 (2) as well as for the synthesis of the plant-growth regulator lunularic acid (36).
用硼酸三甲酯处理后,乙炔酸钠与钯官能化的芳基卤化物或三氟甲磺酸酯进行钯催化的交叉偶联,收率合理至良好。如此获得的乙炔基芳烃用作形成高效微管蛋白聚合抑制剂康维他汀A-4(1)和A-5(2)以及构建植物生长调节剂月桂酸(36)的基础。