CO2 (De)Activation in Carboxylation Reactions: A Case Study Using Grignard Reagents and Nucleophilic Bases
2020
Carbon
dioxide (CO2) is an intrinsically stable molecule.
However, its reactivity toward nucleophilic bases has constituted
an appealing characteristic for applications such as CO2 capture and functionalization. To shed light on the role of nucleophilic
bases in CO2 functionalization, we performed some mechanistic
studies using nitrogen-containing bases as an additivein catalytic
amountsfor carboxylation reactions of Grignard reagents. Our
kinetic analysis and in situ infrared spectroscopy
revealed the role of nucleophilic bases, particularly that of DBU
(1,8-diazabicycloundec-7-ene), in CO2 (de)activation for
carboxylation reactions.
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