Palladium-Catalyzed Oxidative Carbonylative Coupling of Arylallenes, Arylboronic Acids, and Nitroarenes
作者:Hui-Qing Geng、Jin-Bao Peng、Xiao-Feng Wu
DOI:10.1021/acs.orglett.9b02925
日期:2019.10.18
In this Letter, a palladium-catalyzed multicomponent procedure for the selective synthesis of α-substituted α,β-unsaturated ketones has been developed. With readily available allenes, arylboronic acids, and nitroarenes as the substrates, the reaction proceeds selectively to the desired α-substituted enones. Notably, no manipulation of carbon monoxide gas is needed here, and Mo(CO)6 has been applied
在这封信中,开发了钯催化的多组分方法,用于选择性合成α-取代的α,β-不饱和酮。以容易获得的丙二烯,芳基硼酸和硝基芳烃作为底物,反应选择性地进行,得到所需的α-取代的烯酮。值得注意的是,这里不需要一氧化碳气体的处理,而将Mo(CO)6用作稳定的固态CO源。另外,作为氧化偶联反应,将硝基芳烃用作胺源和氧化剂两者以再生活性钯物质。