Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 16710-11-5, is researched, Molecular C6H8N2OS, about Thiouracils. 2. Tautomerism and infrared spectra of thiouracils. Matrix-isolation and ab initio studies, the main research direction is thiouracil tautomer IR; methylthiouracil isomer IR; MO ab initio thiouracil.Reference of 4-Methyl-6-(methylthio)pyrimidin-2-ol.
A study of the IR spectra of thiouracils isolated in low-temperature inert matrixes demonstrated that 2- and 4-thiouracils together with their N1- and N3-methylated derivatives as well as 2,4-dithiouracil exist under these conditions only in the oxothione or dithione tautomeric forms. In contrast, S2- and S4-methylated derivatives exist as a mixture of hydroxy and oxo tautomeric forms under the same conditions. The ratio of concentrations of the oxo and hydroxy tautomers and the free energy differences, were exptl. estimated, from the ratio of the absorbances of the NH and OH stretches. An assignment of the observed IR bands, particularly those related to the C:S stretching vibrations, is proposed on the basis of the comparison of the matrix spectra with those calculated by using ab initio methods (3-21G* basis set).
Although many compounds look similar to this compound(16710-11-5)Reference of 4-Methyl-6-(methylthio)pyrimidin-2-ol, numerous studies have shown that this compound(SMILES:CSC1=NC(O)=NC(C)=C1), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
Reference:
1,8-Naphthyridine – Wikipedia,
1,8-Naphthyridine | C8H6N2 – PubChem