Benzofuran synthesis via copper-mediated oxidative annulation of phenols and unactivated internal alkynes
作者:Ruyi Zhu、Jiangbo Wei、Zhangjie Shi
DOI:10.1039/c3sc51489g
日期:——
example of copper-mediated oxidative annulation of phenols and unactivated internal alkynes to afford benzofuran derivatives was reported. Various phenols and unactivated internal alkynes were successfully employed. Mechanistic studies disclosed a new strategy on annulations of alkynes with phenols through reversible electrophilic carbocupration of phenol followed by alkyne insertion and cyclization
据报道,
苯酚和未活化的内部
炔烃通过
铜介导的氧化环化反应制得
苯并呋喃衍
生物的第一个例子。成功地使用了各种
酚和未活化的内部
炔烃。机理研究揭示了通过可逆的亲电子碳载量使
炔烃与
苯酚环化的新策略。
苯酚 然后进行
炔烃插入和环化。