Multimetallic Ir–Sn3-catalyzed substitution reaction of π-activated alcohols with carbon and heteroatom nucleophiles
作者:Arnab Kumar Maity、Paresh Nath Chatterjee、Sujit Roy
DOI:10.1016/j.tet.2012.10.086
日期:2013.1
An atom economic and catalytic substitution reaction of π-activated alcohols by a multimetallic Ir–Sn3 complex has been demonstrated. The multimetallic Ir–Sn3 complex can be easily synthesized from the reaction between [Cp∗IrCl2]2 and SnCl2. In presence of as little as 1 mol % of the catalyst three different types of π-activated alcohols, namely benzyl, allyl, and propargyl alcohols, have been successfully
已经证明了多金属Ir–Sn 3络合物的π活化醇的原子经济和催化取代反应。从[Cp ∗ IrCl 2 ] 2和SnCl 2之间的反应可以轻松合成多金属Ir-Sn 3络合物。在低至1 mol%的催化剂存在下,已使用碳将三种不同类型的π-活化醇,即苄基,烯丙基和炔丙基醇成功地转化为烷基化产物(芳烃,杂芳烃,烯丙基三甲基硅烷和1,3 (二羰基),氮(磺酰胺),氧(醇)和硫(硫醇)亲核试剂的收率非常高。Hammett相关性研究提出了一种亲电机理。