《Divergent Synthesis of Multisubstituted Unsymmetric Pyrroles and Pyrrolin-4-ones from Enamino Esters via Copper-Catalyzed Aerobic Dimerization》 was published in European Journal of Organic Chemistry in 2019. These research results belong to Chen, Zhi-Wei; Zheng, Lei; Liu, Jin. Computed Properties of C6H10O3 The article mentions the following:
A facile synthetic method to access multisubstituted unsym. pyrrole and pyrrolin-4-one derivatives is disclosed. In the presence of Cu(OAc)2 and KOAc, substituted pyrrole derivatives are produced in good yields (up to 93 %) through oxidative cyclization of enamino esters. Meanwhile, using CuCl2 and TFA (trifluoroacetic acid), pyrrolin-4-one derivatives are obtained in excellent yields (up to 94 %) through 1,2-aryl migration. A wide range of functional groups have been tolerated, and a reliable method for the synthesis of valuable multisubstituted pyrroles and pyrrolin-4-ones has been developed. In the experiment, the researchers used many compounds, for example, Methyl 3-oxovalerate(cas: 30414-53-0Computed Properties of C6H10O3)
Methyl 3-oxovalerate(cas: 30414-53-0) belongs to ketone compounds. They are most widely used as solvents, especially in industries manufacturing explosives, lacquers, paints, and textiles. Ketones are also used in tanning, as preservatives, and in hydraulic fluids.Computed Properties of C6H10O3
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics