In 2015,Chudinov, M. V.; Matveev, A. V.; Zhurilo, N. I.; Prutkov, A. N.; Shvets, V. I. published 《An Efficient Route to Ethyl 5-Alkyl- (Aryl)-1H-1,2,4-triazole-3-carboxylates》.Journal of Heterocyclic Chemistry published the findings.Computed Properties of C4H7NO2S The information in the text is summarized as follows:
An efficient general route to the synthesis of 5-substituted 1H-1,2,4-triazole-3-carboxylates was developed. N-acylamidrazones were obtained from carboxylic acid hydrazides and Et thiooxamate or Et 2-ethoxy-2-iminoacetate hydrochloride and then were reacted with chloroanhydride of the same carboxylic acid. As the next step, diacylamidrazones were cyclized to 5-substituted 1H-1,2,4-triazole-3-carboxylates in one pot in mild conditions. In the experiment, the researchers used Ethyl 2-amino-2-thioxoacetate(cas: 16982-21-1Computed Properties of C4H7NO2S)
Ethyl 2-amino-2-thioxoacetate(cas: 16982-21-1) belongs to anime.Typically the presence of an amine functional group is deduced by a combination of techniques, including mass spectrometry as well as NMR and IR spectroscopies. 1H NMR signals for amines disappear upon treatment of the sample with D2O. In their infrared spectrum primary amines exhibit two N-H bands, whereas secondary amines exhibit only one.Computed Properties of C4H7NO2S
Referemce:
Ester – Wikipedia,
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