Bernhardt, Bastian; Ruth, Marcel; Eckhardt, Andre K.; Schreiner, Peter R. published an article in 2021. The article was titled 《Ethynylhydroxycarbene (H-CC-C̈-OH)》, and you may find the article in Journal of the American Chemical Society.Name: Ethyl oxalyl monochloride The information in the text is summarized as follows:
The species on the C3H2O potential energy surface have long been known to play a vital role in extraterrestrial chem. Here we report on the hitherto uncharacterized isomer ethynylhydroxycarbene (H-CC-C̈-OH, 1) generated by high-vacuum flash pyrolysis of ethynylglyoxylic acid Et ester and trapped in solid argon matrixes at 3 and 20 K. Upon irradiation at 436 nm trans-1 rearranges to its higher lying cis-conformer. Prolonged irradiation leads to the formation of propynal. When the matrix is kept in the dark, 1 reacts within a half-life of ca. 70 h to propynal in a conformer-specific [1,2]H-tunneling process. Our results are fully consistent with computations at the CCSD(T)/cc-pVTZ and the B3LYP/def2-QZVPP levels of theory. In the experiment, the researchers used Ethyl oxalyl monochloride(cas: 4755-77-5Name: Ethyl oxalyl monochloride)
Ethyl oxalyl monochloride(cas: 4755-77-5) belongs to acyl chlorides. In the laboratory, acyl chlorides are generally prepared by treating carboxylic acids with thionyl chloride (SOCl2). The reaction is catalyzed by dimethylformamide and other additives.Name: Ethyl oxalyl monochloride
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics