Parmar, Udaysinh; Somvanshi, Dipesh; Kori, Santosh; Desai, Aman A.; Dandela, Rambabu; Maity, Dilip K.; Kapdi, Anant R. published an article in 2021. The article was titled 《Room-Temperature Amination of Chloroheteroarenes in Water by a Recyclable Copper(II)-Phosphaadamantanium Sulfonate System》, and you may find the article in Journal of Organic Chemistry.Electric Literature of C4H2Cl2N2 The information in the text is summarized as follows:
The current report discusses about an efficient copper-based catalytic system (Cu/PTABS) for the amination of chloroheteroarenes RCl (R = pyrazinyl, 1,3-benzothiazol-2-yl, 9H-purin-6-yl, etc.) at ambient temperature in water as the sole reaction solvent, a combination that is first to be reported. A wide variety of chloroheteroarenes could be coupled efficiently with primary and secondary amines, e.g., morpholine as well as selected amino acid esters, e.g., L-valine Me ester hydrochloride under mild reaction conditions. Catalytic efficiency of the developed protocol also promotes late-stage functionalization of active pharmaceutical ingredients, e.g., I (APIs) such as antibiotics (floxacins) and anticancer drugs. The catalytic system also performs efficiently at a very low concentration of 0.0001 mol% (TON = 980,000) and can be recycled 12 times without any appreciable loss in activity. Theor. calculations reveal that the π-acceptor ability of the ligand PTABS is the main reason for the appreciably high reactivity of the catalytic system. Preliminary characterization of the catalytic species in the reaction was carried out using UV-VIS and ESR spectroscopy, providing evidence for the Cu(II) oxidation state. In the experiment, the researchers used many compounds, for example, 2,4-Dichloropyrimidine(cas: 3934-20-1Electric Literature of C4H2Cl2N2)
2,4-Dichloropyrimidine(cas: 3934-20-1) is a member of organic chlorides. Organic chloride content in crude oil can be detected through specialized laboratory analysis. Care and attention are essential while sampling and testing.Electric Literature of C4H2Cl2N2
Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia