Electrochemical Oxidative Cyclization: Synthesis of Polysubstituted Pyrrole from Enamines was written by Chen, Zhiwei;Shi, Guang;Tang, Wei;Sun, Jie;Wang, Wenxing. And the article was included in European Journal of Organic Chemistry in 2021.Safety of Ethyl 3-oxo-3-(m-tolyl)propanoate This article mentions the following:
A conceptually novel method for the preparation of pyrrole is described by electrochem.-oxidation-induced intermol. annulation via enamines. In a simple undivided cell, based on a sodium acetate-facilitated, polysubstituted pyrrole derivations has been facilely synthesized under external oxidant-free condition. This electrosynthetic approach providing an environmentally benign protocol for C-C bond cross-coupling and oxidative annulation, which features unparalleled broad scope of substrates and practicality. In the experiment, the researchers used many compounds, for example, Ethyl 3-oxo-3-(m-tolyl)propanoate (cas: 33166-79-9Safety of Ethyl 3-oxo-3-(m-tolyl)propanoate).
Ethyl 3-oxo-3-(m-tolyl)propanoate (cas: 33166-79-9) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Safety of Ethyl 3-oxo-3-(m-tolyl)propanoate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics