Li, Fengxi’s team published research in European Journal of Organic Chemistry in 2019 | CAS: 623-47-2

Ethyl propiolate(cas: 623-47-2) is a clear colorless to pale yellow liquid that is soluble in ethanol, ether and chloroform. It an important organic chemical raw material and pharmaceutical intermediate. Ethyl propargylate is obtained by oxidation of propargyl alcohol to propargylic acid followed by esterification.Computed Properties of C5H6O2

The author of 《Hemoglobin-Catalyzed Synthesis of Indolizines Under Mild Conditions》 were Li, Fengxi; Tang, Xuyong; Xu, Yaning; Wang, Chunyu; Zhang, Liu; Zhang, Jiaxin; Liu, Jiaxu; Li, Zhengqiang; Wang, Lei. And the article was published in European Journal of Organic Chemistry in 2019. Computed Properties of C5H6O2 The author mentioned the following in the article:

Hb-catalyzed synthesis of indolizines via a multicomponent reaction is reported for the first time. The corresponding indolizines were obtained in moderate to high yields by using this method. This mild, efficient and practical method is distinguished using a com. inexpensive biocatalyst and readily available starting materials, wide substrate scope, and operational simplicity. Furthermore, this method expands the application of Hb in organic synthesis. In the experiment, the researchers used many compounds, for example, Ethyl propiolate(cas: 623-47-2Computed Properties of C5H6O2)

Ethyl propiolate(cas: 623-47-2) is a clear colorless to pale yellow liquid that is soluble in ethanol, ether and chloroform. It an important organic chemical raw material and pharmaceutical intermediate. Ethyl propargylate is obtained by oxidation of propargyl alcohol to propargylic acid followed by esterification.Computed Properties of C5H6O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics