Beyond the Limits: Palladium-N-Heterocyclic Carbene-Based Catalytic System Enables Highly Efficient [4+2] Benzannulation Reactions
作者:Olga V. Zatolochnaya、Alexey V. Galenko、Vladimir Gevorgyan
DOI:10.1002/adsc.201100983
日期:2012.4.16
A highly efficient catalytic system for the palladium‐catalyzed [4+2] benzannulation reaction of enynes and enynophiles has been developed. The use of an N‐heterocyclic carbene‐based palladium precursor allowed us to achieve turnover numbers up to 1800. The new catalytic system has enabled an expansion of the scope of the [4+2] homo‐benzannulation reaction.
已经开发出了一种高效的催化体系,用于钯催化的炔烃和亲核试剂的[4 + 2]苯环化反应。使用基于N-杂环卡宾的钯前驱体,使我们的营业额达到1800。新的催化系统使[4 + 2]均苯并苯反应的范围得以扩大。