Efficient hydrocarboxylation of alkynes based on carbodiimide-regulated in situ CO generation from HCOOH: An alternative indirect utilization of CO2
作者:Shu-Mei Xia、Zhi-Wen Yang、Kai-Hong Chen、Ning Wang、Liang-Nian He
DOI:10.1016/s1872-2067(21)63848-2
日期:2022.7
operating toxic CO and circumventing sensitivity issue to the CO amount. On the basis of the attractive features of formic acid including easy preparation through CO2 hydrogenation and efficient liberation of CO, this protocol using formic acid as bridging reagent between CO2 and CO can be perceived as an indirect utilization of CO2, offering an alternative method for preparing acrylic acid analogues.
iron‐catalyzed synthesis of α,β‐unsaturated carboxylic acids from alkynes and carbondioxide was developed. This reaction proceeds through hydromagnesiation of alkynes followed by carbondioxide insertion under atmospheric pressure and ambient temperature in the presence of iron and a Grignard reagent as a catalyst and hydride source, respectively. Several symmetrical and unsymmetrical alkynes were transformed