期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 85, 期 20, 页码 13204-13210出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.0c01987
关键词
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资金
- National Natural Science Foundation of China [21702005, 21672124]
- Henan Joint International Research Laboratory of Nanocomposite Sensing Materials
A Bronsted basicity scale (similar to 24 pK units) for 85 commonly seen imidazole-, imidazoline-, triazole-, and thiazole-based N-heterocyclic olefins (NHOs) in DMSO was established using a well-examined computational model. The influence of substituents on the BrOnsted basicities of these NHOs was investigated through basicity comparisons and rationalized by geometric analyses. The Gibbs energy (Delta G(r)) of the reaction between NHO and CO2 was also calculated, which linearly correlates with the basicity of the corresponding NHO, suggesting that the stability of NHO-CO2 adducts can be evaluated by the basicity of NHOs and a stronger basicity leads to a more stable NHO-CO2 adduct.
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