Pd-Catalyzed C-H Olefination of (Hetero)Arenes by Using Saturated Ketones as an Olefin Source
作者:Yaping Shang、Xiaoming Jie、Jun Zhou、Peng Hu、Shijun Huang、Weiping Su
DOI:10.1002/anie.201208627
日期:2013.1.21
Tolerant: By using Pd(OAc)2/PCy3 as a catalyst, both electron‐rich aromatic heterocycles and electron‐deficient fluorobenzenes undergo the dehydrogenative cross‐coupling with (hetero)aryl ethyl ketones in good yields. A broad range of functional groups is tolerated, thus providing a general method for the facile syntheses of chalcones or heterocyclic chalcone analogues. Furthermore, dialkyl ketones can also
耐受性:通过使用Pd(OAc)2 / PCy 3作为催化剂,富含电子的芳族杂环和缺乏电子的氟苯都可以与(杂)芳基乙基酮进行脱氢交叉偶联,收率很高。宽泛的官能团是可以容忍的,因此提供了一种轻松合成查耳酮或杂环查耳酮类似物的通用方法。此外,二烷基酮也可以参与该转化。