Transition metal-free carboxylation of terminal alkynes with carbon dioxide through dual activation: Synthesis of propiolic acids. (July 2019)

• Record Type: Journal Article
• Authors: Wang, Wan-Hui; Feng, Xiujuan; Sui, Kun; Fang, Dingqiao; Bao, Ming
• Is Part Of: Journal of CO₂ utilization. Volume 32(2019)
• Page Start: 140
• Page End: 145
• Publication Date: 2019-07
• Subjects: Carboxylation -- CO2 utilization -- Organic salt -- Dual activation -- Propiolic acid; Carbon dioxide -- Periodicals; Carbon dioxide -- Environmental aspects -- Periodicals; Carbon dioxide mitigation -- Periodicals; Carbon dioxide; Carbon dioxide -- Environmental aspects; Carbon dioxide mitigation; Periodicals; 628.53205
• DOI: 10.1016/j.jcou.2019.04.011
• Languages: English
• ISSNs: 2212-9820

Abstract

Graphical abstract: Abstract: The combination use of quaternary ammonium salt and inorganic base in low-boiling-point solvent is presented as a new strategy for terminal alkyne carboxylation with CO2 . The carboxylation of terminal alkyne with CO2 proceeded smoothly in the presence of tetra- n -butylammonium acetate and K2 CO3 through dual activation under relatively mild conditions to produce the corresponding propiolic acids in satisfactory to excellent yields.