Palladium-Catalyzed Carbonylative Cross-Coupling Reaction
between Aryl(Heteroaryl) Iodides and Tricyclopropylbismuth:
Expedient Access to Aryl Cyclopropylketones
The carbonylative cross-coupling reaction between aryl and heteroaryl iodides and tricyclopropylbismuth is reported. The reaction is catalyzed by (SIPr)Pd(allyl)Cl, a NHC-palladium(II) catalyst, operates under 1 atm of carbon monoxide and tolerates a wide range of functional groups. The use of lithium chloride was found to provide higher yields of the desired aryl cyclopropylketones. The conditions
报道了芳基和杂芳基碘化物与三环丙基铋之间的羰基化交叉偶联反应。该反应由 (SIPr)Pd(烯丙基)Cl 催化,这是一种 NHC-钯 (II) 催化剂,在 1 个大气压的一氧化碳下运行,并能耐受多种官能团。发现使用氯化锂可提供更高产率的所需芳基环丙基酮。该条件也适用于碘代烯烃的羰基化交叉偶联,以提供相应的烯基环丙基酮。