Efficient and selective alkylation of arenes and heteroarenes with benzyl and allyl ethers using a Ir/Sn bimetallic catalyst
作者:Susmita Podder、Sujit Roy
DOI:10.1016/j.tet.2007.06.068
日期:2007.9
A high-valent heterobimetallic catalyst namely [Ir2(COD)2(SnCl3)2(Cl)2(μ-Cl)2] (5 mol %), or dual catalyst system of [Ir(COD)Cl]2 (1 mol %) and SnCl4 (4 mol %), promotes the benzylation or allylation of arenes and heteroarenes using ethers as the alkylating agents. An electrophilic mechanism is proposed from a Hammett correlation.
一种高价杂双金属催化剂,即[Ir 2(COD)2(SnCl 3)2(Cl)2(μ-Cl)2 ](5 mol%),或[Ir(COD)Cl] 2(使用醚作为烷基化剂,1摩尔%)和SnCl 4(4摩尔%)促进芳烃和杂芳烃的苄基化或烯丙基化。由哈米特相关性提出了一种亲电机理。