A Mild Method for the Direct Fluorination of Pyrroles by Using a Lipophilic Anionic Phase-Transfer Catalyst was written by Hiramatsu, Kenichi;Tamamura, Hirokazu. And the article was included in European Journal of Organic Chemistry in 2016.Category: esters-buliding-blocks This article mentions the following:
A mild fluorination method for pyrroles, based on anionic phase-transfer catalysis by using Selectfluor, a lipophilic phosphoric acid, and a base in an apolar solvent is described. The thus obtained fluorinated pyrroles bearing a wide variety of functional groups are attractive building blocks for medicinal chem. In the experiment, the researchers used many compounds, for example, Ethyl 4-methyl-1H-pyrrole-3-carboxylate (cas: 2199-49-7Category: esters-buliding-blocks).
Ethyl 4-methyl-1H-pyrrole-3-carboxylate (cas: 2199-49-7) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. 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.Category: esters-buliding-blocks
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics