Synthesis of α,β-alkynyl ketones <i>via</i> the nickel catalysed carbonylative Sonogashira reaction using oxalic acid as a sustainable C1 source
作者:Shaifali Shaifali、Shankar Ram、Vandna Thakur、Pralay Das
DOI:10.1039/c9ob01064e
日期:——
An efficient and economic nickel-dppb catalyzed, carbonylative Sonogashira cross-coupling reaction was demonstrated to providerapidaccess to various α,β-alkynyl ketones from aryl iodides and terminal alkynes using oxalic acid as the ex situ C1 source in a double vial (DV) system. Notably, the role of the ligand in combination with the Ni catalyst for the selective formation of carbonylative Sonogashira
decades of development, carbonylation reactions have become one of the most powerful tools in modern organic synthesis. However, the requirement of CO gas limits the applications of such reactions. Reported herein is a versatile and practical protocol for carbonylativereactions which rely on the cooperation of phenyl formate and nonaflate, and the generation of CO in situ. This protocol has a high functional‐group