Synthesis of diheteroaryl sulfides via chemoselective reaction of 4,6-diaminopyrimidine-2(1H)-thione with haloheteroaryl compounds was written by Davodian, Tayebeh;Ranjbar-Karimi, Reza;Mehrabi, Hossein. And the article was included in Chemistry of Heterocyclic Compounds in 2017.Recommanded Product: 2,3,4,5,6-Perfluoropyridine The following contents are mentioned in the article:
A series of substituted diheteroaryl sulfides was synthesized by the reaction of 4,6-diaminopyrimidine-2(1H)-thione with fluoro- and chloroheteroarom. compounds in the presence of Na2CO3 in acetonitrile under reflux conditions. The study indicated that 4,6-diaminopyrimidine-2(1H)-thione reacts with fluoro- and chloroheteroarom. compounds chemoselectively as S- rather than N-nucleophile. The structures of the synthesized compounds were confirmed by IR, 1H, 19F, and 13C NMR spectroscopy, as well as elemental anal. and X-ray structural anal. This study involved multiple reactions and reactants, such as 2,3,4,5,6-Perfluoropyridine (cas: 700-16-3Recommanded Product: 2,3,4,5,6-Perfluoropyridine).
2,3,4,5,6-Perfluoropyridine (cas: 700-16-3) belongs to pyridine derivatives. Pyridine has a dipole moment and a weaker resonant stabilization than benzene (resonance energy 117 kJè·¯molé? in pyridine vs. 150 kJè·¯molé? in benzene). Many analogues of pyridine are known where N is replaced by other heteroatoms . Substitution of one Cé¥æ in pyridine with a second N gives rise to the diazine heterocycles (C4H4N2), with the names pyridazine, pyrimidine, and pyrazine.Recommanded Product: 2,3,4,5,6-Perfluoropyridine