Propargylic Activation Across a Heterobimetallic Ir−Sn Catalyst: Nucleophilic Substitution and Indene Formation with Propargylic Alcohols
作者:Paresh Nath Chatterjee、Sujit Roy
DOI:10.1021/jo100189z
日期:2010.7.2
A nucleophilic substitution of propargylic alcohols with carbon (arene, heteroarene, and allyltrimethylsilane), sulfur (thiol), oxygen (alcohol), and nitrogen (sulfonamide) nucleophiles has been demonstrated using a high-valent [Ir(COD)(SnCl3)Cl(μ-Cl)]2 catalyst in 1,2-dichloroethane to afford the corresponding propargylic products in moderate to excellent yields. Alkyl or aryl substituted tertiary
使用高价[Ir(COD)(SnCl 3)证明了炔丙醇被碳(芳烃,杂芳烃和烯丙基三甲基硅烷),硫(硫醇),氧(醇)和氮(磺酰胺)亲核试剂取代。在1,2-二氯乙烷中的Cl(μ-Cl)] 2催化剂,以中等至极好的收率得到相应的炔丙基产物。烷基或芳基取代的叔炔丙醇通过烯基中间体产生具有大芳烃的取代的茚基。由哈米特相关性提出了一种亲电机理。