highly functionalized 2-(2-hydroxyaryl)-2-alkoxy-1-arylethan-1-ones. Detailed mechanistic studies suggested a relay process, initiating with gold-catalyzed hydroalkoxylation of alkynes, to generate enol-ether followed by a key formal [4+2]-cycloaddition reaction. The successful application of the present methodology was also shown for the synthesis of benzofurans.
本文报道的是在合并的
金/有机光氧化还原催化下的二芳基
炔烃的正加氧1,2-双官能化,以得到高度官能化的2-(2-羟基芳基)-2-烷氧基-1-芳基-1-酮。详细的机理研究表明,中继过程始于
炔烃的
金催化加氢烷氧基化反应,生成烯醇醚,然后进行关键的正式[4 + 2]-环加成反应。还显示了本方法的成功应用以合成
苯并呋喃。