An efficient protocol for multicomponent synthesis of 1H-chromeno[4,3-b]pyridin-5(4H)-ones derivatives was written by Chen, Zhiwei;Gu, Jinying;Su, Weike. And the article was included in Journal of Chemical Research in 2013.Recommanded Product: Ethyl 3-oxo-3-(m-tolyl)propanoate This article mentions the following:
A series of 1H-chromeno[4,3-b]pyridin-5(4H)-one derivatives, e.g., I, were synthesized via a three-component condensation of 4-aminocoumarin, aldehydes and Et benzoylacetates, under simple mild reaction conditions. In the experiment, the researchers used many compounds, for example, Ethyl 3-oxo-3-(m-tolyl)propanoate (cas: 33166-79-9Recommanded Product: Ethyl 3-oxo-3-(m-tolyl)propanoate).
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, including apples, durians, pears, bananas, pineapples, and strawberries. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Recommanded Product: Ethyl 3-oxo-3-(m-tolyl)propanoate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics