Fournovel N-heterocyclic carbene (NHC) silvercomplexes, I–IV, have been synthesized and characterized. The single X-ray crystal diffraction data indicate a dinuclear solid-state structure for I and III and a mononuclear structure for II and IV. These complexes have been successfully used as efficient catalysts for the C–H activating carboxylation of terminal alkynes with CO2. A wide range of substrates
Carbon Dioxide Capture and Use: Organic Synthesis Using Carbon Dioxide from Exhaust Gas
作者:Seung Hyo Kim、Kwang Hee Kim、Soon Hyeok Hong
DOI:10.1002/anie.201308341
日期:2014.1.13
A carboncapture and use (CCU) strategy was applied to organicsynthesis. Carbondioxide (CO2) captured directly fromexhaustgas was used for organic transformations as efficiently as hyper‐pure CO2 gasfrom a commercial source, even for highly air‐ and moisture‐sensitive reactions. The CO2 capturing aqueous ethanolamine solution could be recycled continuously without any diminished reaction efficiency
Ligand-Free Ag(I)-Catalyzed Carboxylation of Terminal Alkynes with CO<sub>2</sub>
作者:Xiao Zhang、Wen-Zhen Zhang、Xiang Ren、Lin-Lin Zhang、Xiao-Bing Lu
DOI:10.1021/ol200638z
日期:2011.5.6
A convenient approach to selectively prepare a wide range of functionalized propiolic acids was developed by Agl-catalyzed carboxylation of terminal alkynes using carbon dioxide as carboxylative agent under ligand-free conditions.
Vereshchagin,L.I. et al., Journal of Organic Chemistry USSR (English Translation), 1976, vol. 12, p. 1174 - 1178