Herein we report a Ag(I)-promoted homo-dimerization of 2-(alk-2-yn-1-onyl)-1-alkynylbenzenes for the synthesis of structurally novel and functionalized naphthalene derivatives. This transformation exhibits a broad scope for the alkyl as well as aryl groups present on alkynes. Observations made from control experiments suggest the possible mechanism as (i) the homo-dimerization of the in situ generated
在这里,我们报告了 Ag( I ) 促进的 2-(alk-2-yn-1-onyl)-1-alkynylbenzos 的均二聚化,用于合成结构新颖和功能化的
萘衍
生物。这种转变对存在于
炔烃上的烷基和芳基表现出广泛的范围。对照实验的观察结果表明可能的机制为(i)通过头尾[4 + 2]环加成原位产生的苯并
吡喃离子中间体的均二聚化,然后是(ii)竞争性开环与。加合物的脱羰芳构化分别得到甲酰化和去甲酰化
萘。