Xiang, Shiqun; Fan, Weibin; Zhang, Wei; Li, Yinghua; Guo, Shiwei; Huang, Deguang published the artcile< Aqueous CO2 fixation: construction of pyridine skeletons in cooperation with ammonium cations>, Quality Control of 94-02-0, the main research area is pyridine preparation green chem; ketone carbon dioxide cycloaddition.
A simple and green method is explored for the synthesis of fused pyridines e.g., 3,7-dimethyl-10,12-dihydrodiindeno[1,2-b:2′,1′-e]pyridine by [2 + 2 + 1 + 1] the cycloaddition of ketones e.g., 6-methyl-1-indanone with an ammonium cation under a CO2 atmosphere. The reactions employed ammonium cation as a nitrogen source and CO2 gas as a carbon source in an aqueous solution Monoethanolamine (MEA) was used as an additive to increase the solubility of CO2 in an aqueous solution The scope and versatility of the method are demonstrated with examples e.g., 3,7-dimethyl-10,12-dihydrodiindeno[1,2-b:2′,1′-e]pyridine. Products are found to be photosensitive and show potential applications as organic optoelectronic materials. A selectfluor-promoted reaction mechanism is proposed based on the exptl. studies. This work is superior as it is a metal-free system, uses CO2 as a carbon source and MEA as an additive in aqueous synthesis.
Green Chemistry published new progress about Cycloaddition reaction. 94-02-0 belongs to class esters-buliding-blocks, and the molecular formula is C11H12O3, Quality Control of 94-02-0.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics