3(2H)-furanone derivatives has been achieved from metal-free cross-coupling of α-diazo ester and α-aryldiazo ketones. This reaction sequence comprises a prior Wolff rearrangement of α-aryldiazo ketones to 2-arylketenes, which are trapped in situ with α-diazo esters to form cyclopropanones before undergoing oxa-Nazarov cyclization.
α-重氮酯和α-芳基重
氮酮的无
金属交叉偶联已经实现了3(2 H )-
呋喃酮衍
生物的无催化剂合成。该反应序列包括 α-芳基重
氮酮预先沃尔夫重排为 2-芳基烯酮,在进行 oxa-Nazarov 环化之前,其与 α-重氮酯原位捕获形成环
丙酮。