Palladium-Catalyzed Alkoxycarbonylation of Conjugated Dienes under Acid-Free Conditions: Atom-Economic Synthesis of β,γ-Unsaturated Esters
作者:Xianjie Fang、Haoquan Li、Ralf Jackstell、Matthias Beller
DOI:10.1002/anie.201404563
日期:2014.8.18
transformations is of interest for both academic and industrial research. Here, a benign palladium‐based catalyst system for the alkoxycarbonylation of conjugated dienes under acid‐free conditions has been developed. This atom‐efficient transformation provides straightforward access to a variety of β,γ‐unsaturated esters in good to excellent yields and often with high selectivities. As an industrially
羰基化反应是合成各种羧酸衍生物的重要方法。为这些转变开发新颖和更好的催化剂对于学术研究和工业研究都非常重要。在这里,开发了一种在无酸条件下用于共轭二烯烷氧基羰基化的良性钯基催化剂体系。这种高效的原子转换可直接获得各种β,γ-不饱和酯,收率好至极好,而且通常具有很高的选择性。作为工业相关的实例,证明了由1,3-丁二烯(正)合成己二酸二甲酯和ε-己内酰胺。