Regioselective Synthesis of Tetraalkynylarenes by Consecutive Dual Sonogashira Coupling Reactions of the Bis(triflate) of 4,5-Diiodobenzene-1,2-diol
作者:Thomas J. Fisher、Patrick H. Dussault
DOI:10.1002/ejoc.201200079
日期:2012.5
The regioselective synthesis of nonsymmetric tetraalkynylarenes has been readily achieved through consecutive sets of Sonagashira cross-coupling reactions of the bis(triflate) derivative of 4,5-diiodobenzene-1,2-diol. The initial coupling reactions proceeded with nearly complete selectivity for the reaction at the Ar–I linkages. Subsequent coupling reactions at the Ar–OTf linkages were efficiently
通过 4,5-二碘苯-1,2-二醇的双(三氟甲磺酸酯)衍生物的连续组 Sonagashira 交叉偶联反应,可以很容易地实现非对称四炔基芳烃的区域选择性合成。初始偶联反应在 Ar-I 键处以几乎完全的选择性进行。随后在 Ar-OTf 连接处的偶联反应有效地进行。四炔基芳烃产品作为有机分子材料的组分受到关注。