Synthesis of new aryl substituted furan-2(5H)-ones using the Suzuki–Miyaura reaction
作者:Ruonan Zhang、George Iskander、Paulo da Silva、Daniel Chan、Valentina Vignevich、Vi Nguyen、Mohan M. Bhadbhade、David StC Black、Naresh Kumar
DOI:10.1016/j.tet.2011.02.014
日期:2011.4
5-arylidenefuran-2(5H)-ones and 5-arylidene-4-arylfuran-2(5H)-ones were synthesized via the Suzuki–Miyaura reactions of fimbrolide derivatives 5-(bromomethylene)furan-2(5H)-one and 4-bromo-5-(bromomethylene)furan-2(5H)-one, respectively. A regioselective Suzuki–Miyaura reaction on 4-bromo-5-(bromomethylene)furan-2(5H)-one allowed the synthesis of unsymmetrically substituted 5-arylidene-4-arylfuran-2(5H)-ones. The
一系列新的5-芳基呋喃-2(5 H)-和5-芳基-4-芳基呋喃-2(5 H)-是通过氟溴化物衍生物5-(溴代亚甲基)呋喃-2的Suzuki-Miyaura反应合成的。 (5 H)-1和4-溴-5-(溴亚甲基)呋喃-2(5 H)-1 。在4-溴-5-(溴亚甲基)呋喃-2(5 H)-上的区域选择性Suzuki-Miyaura反应可以合成不对称取代的5-亚芳基-4-芳基呋喃-2(5 H)-。中间体5-亚芳基-4-溴呋喃-2(5 H)-one的晶体结构揭示了有趣的Br⋯O卤素键。