A facile and efficient protocol for palladium-catalyzed ortho-acylation of 2-aryl pyridines was developed. Note that this acylation utilized arylmethyl amines as new, cheap and readily available acylation reagents and exhibited high regioselectivity for 2-aryl pyridines bearing a meta-substituent in the aryl ring moiety.
开发了一种简便高效的
钯催化邻位酰化2-芳基
吡啶的协议。值得注意的是,该酰化反应采用了芳基甲基胺作为新的、廉价且易获得的酰化试剂,并对在芳环中具有间位取代基的2-芳基
吡啶表现出高的区域选择性。