Anodic oxidation potentials of substituted pyrroles: derivation and analysis of substituent partial potentials was written by Tabba, Hani D.;Smith, Kevin M.. And the article was included in Journal of Organic Chemistry in 1984.Application In Synthesis of Ethyl 4-methyl-1H-pyrrole-3-carboxylate This article mentions the following:
The anodic oxidation potentials of 117 pyrroles, determined by cyclic voltammetry, were used to estimate substituent partial potentials; the substituent constants accurately predicted the oxidation potentials of any common substituted pyrrole. Calculated and observed oxidation potentials differed when 2 strongly electron-withdrawing substituents (EWS) were located at C(2) and C(5) and when the pyrrole was unsubstituted at C(2) and had a strong EWS at C(5). LFER of the substituent partial potentials with 锜?sub>p and 锜?sub>m were not good; a good LFER of substituent partial potentials and the pKa of 5-pyrrolecarboxylic acids was observed In the experiment, the researchers used many compounds, for example, Ethyl 4-methyl-1H-pyrrole-3-carboxylate (cas: 2199-49-7Application In Synthesis of Ethyl 4-methyl-1H-pyrrole-3-carboxylate).
Ethyl 4-methyl-1H-pyrrole-3-carboxylate (cas: 2199-49-7) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is 绾?valerolactone.Application In Synthesis of Ethyl 4-methyl-1H-pyrrole-3-carboxylate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics