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Transition metal-free carboxylation of terminal alkynes with carbon dioxide through dual activation: Synthesis of propiolic acids
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Indexed by:Journal Article
Date of Publication:2019-07-01
Journal:JOURNAL OF CO2 UTILIZATION
Included Journals:EI、SCIE
Volume:32
Page Number:140-145
ISSN:2212-9820
Key Words:Carboxylation; CO2 utilization; Organic salt; Dual activation; Propiolic acid
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 K2CO3 through dual activation under relatively mild conditions to produce the corresponding propiolic acids in satisfactory to excellent yields.
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