A Flexible Metal-Catalyzed Synthesis of Highly Substituted Aryl Phenanthrenyl Selenides
作者:Wontaeck Lim、Young Ho Rhee
DOI:10.1002/ejoc.201201340
日期:2013.1
development of highly substituted phenanthrenyl phenyl selenides 4 and 6 by metal-catalyzed cyclization of o-phenylarylalkynes species 1 was successfully performed. The selectivity for 9- and 10-selenyl phenanthrenes was perfectly controlled by indium(III) and gold(I) catalysts, and the reactions proceed through different pathways. For the In(OTf)3 catalyst system, 6-endo cyclization of alkyne 3 gives
描述了一种制备二芳基硒化物的有效方法,这在生物学和材料科学中很重要。具体而言,通过金属催化的邻苯芳基炔类物质 1 的环化,成功开发了高度取代的菲基苯基硒化物 4 和 6。9-和10-硒基菲的选择性由铟(III)和金(I)催化剂完美控制,反应通过不同的途径进行。对于 In(OTf)3 催化剂体系,炔烃 3 的 6-内环化得到产物 4,其中保留了硒基团。相比之下,对于 AuCl(IPr)/AgSbF6 催化剂体系,金属-炔配合物 2 转化为亚乙烯基-金中间体 5 得到产物 6,其中硒基团迁移。各种基材,甚至电子不良的基材,