Iridium-Catalyzed Oxidative Olefination of Furans with Unactivated Alkenes
作者:Christo S. Sevov、John F. Hartwig
DOI:10.1021/ja504414c
日期:2014.7.30
The oxidative coupling of arenes and alkenes is an attractive strategy for the synthesis of vinylarenes, but reactions with unactivatedalkenes have typically occurred in low yield. We report an Ir-catalyzed oxidative coupling of furans with unactivated olefins to generate branched vinylfuran products in high yields and with high selectivities with a second alkene as the hydrogen acceptor. Detailed
芳烃和烯烃的氧化偶联是合成乙烯基芳烃的一种有吸引力的策略,但与未活化烯烃的反应通常以低产率发生。我们报告了呋喃与未活化烯烃的 Ir 催化氧化偶联,以高产率和高选择性生成支链乙烯基呋喃产物,第二个烯烃作为氢受体。详细的机械实验揭示了催化剂分解途径,这些途径通过明智地选择反应条件和应用新配体而得到缓解。