Fan, Qiangwen; Wu, Guorong; Chen, Yong; He, Yanling; Zhu, Longwei; Ren, Huijun; Lin, Hailu published their research in Journal of Molecular Structure in 2021. The article was titled 《An unexpected Cu(II) complex of oxidized 1,4-dydropyridine derivative: Synthesis, characterization and DFT calculations》.Quality Control of Ethyl propiolate The article contains the following contents:
A Cu(II) complex of 4-phenyl-3,5-dicarboxylic-pyridine (HL2), [Cu(HL2)Py], was isolated unexpectedly during studying coordination reaction of 3,5-dicarboxylic-1,4-dihydropyridine-4-Ph ligand (HL1) with copper(II) nitrate by solvothermal method. Crystal structure of the [Cu(HL2)Py] was determined by single-crystal X-Ray diffraction and its phase purity and thermal stability was evaluated by PXRD and TGA, resp. Furthermore, to shed more light on structural properties of the [Cu(HL2)Py], its geometrical and electronic structure was investigated exptl. and theor. Finally, the oxidative mechanism of HL1 was investigated by DFT calculations In the part of experimental materials, we found many familiar compounds, such as Ethyl propiolate(cas: 623-47-2Quality Control of Ethyl propiolate)
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.Quality Control of Ethyl propiolate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics