NMR spectroscopic study of tautomeric systems. V. Effect of substituents in the benzene ring and in the ester group on chemical shifts in PMR spectra of benzoylacetates was written by Zheglova, D. Kh.;Ershov, B. A.;Kol’tsov, A. I.. And the article was included in Zhurnal Organicheskoi Khimii in 1974.Recommanded Product: Ethyl 3-oxo-3-(m-tolyl)propanoate This article mentions the following:
NMR spectra of RC6H4COCH2CO2Et (R = p-Me2N, p-Br, m-Me, p-Me, and o-, m-, and p-Cl, -NO2 and -OMe) and of PhCOCH2CO2R (R = Me, Et, Pr, Me2CH, Bu, Me3C) were correlated with structure. Also prepared and characterized were p-RC6H4COCH2CO2R1 (R =MeO, R1 = Pr, Me2CH, Bu, Me2CHCH2, Me3C; R = NO2, R1 = Pr, Me2CH, Bu, Me3C). 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. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Recommanded Product: Ethyl 3-oxo-3-(m-tolyl)propanoate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics