Xiang, Shiqun et al. published their research in Green Chemistry in 2021 | CAS: 33166-79-9

Ethyl 3-oxo-3-(m-tolyl)propanoate (cas: 33166-79-9) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Application of 33166-79-9

Aqueous CO2 fixation: construction of pyridine skeletons in cooperation with ammonium cations was written by Xiang, Shiqun;Fan, Weibin;Zhang, Wei;Li, Yinghua;Guo, Shiwei;Huang, Deguang. And the article was included in Green Chemistry in 2021.Application of 33166-79-9 This article mentions the following:

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. In the experiment, the researchers used many compounds, for example, Ethyl 3-oxo-3-(m-tolyl)propanoate (cas: 33166-79-9Application of 33166-79-9).

Ethyl 3-oxo-3-(m-tolyl)propanoate (cas: 33166-79-9) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Application of 33166-79-9

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics