Application of 6307-44-4. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 2-Amino-6-methylpyrimidine-4-thiol, is researched, Molecular C5H7N3S, CAS is 6307-44-4, about High-yield regioselective thiation of biologically important pyrimidinones, dihydropyrimidinones and their ribo, 2′-deoxyribo and 2′,3′-dideoxyribo nucleosides. Author is Felczak, Krzysztof; Bretner, Maria; Kulikowski, Tadeusz; Shugar, David.
Convenient and high-yield regioselective thiation procedures based on the use of the Lawesson reagent in different solvents, are described for conversion of the 2- and 4-keto, and 2,4-diketo pyrimidines to the corresponding 2(4)-thio, and 2,4-dithio, derivatives This method is applicable to thiation of the 4-keto groups of 5,6-dihydropyrimidinones and pyrimidine nucleosides. The mild reaction conditions employed are such that it is the method of choice for compounds with labile glycosidic bonds, of choice for compounds with labile glycosidic bonds, such as 5,6-dihydropyrimidine nucleosides and the 2′,3′-dideoxynucleosides currently of interest as antiretroviral, including anti-HIV, agents.
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Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com