Abstract
The imidazolium salt, obtained by the multicomponent condensation of benzyl isonitrile, methylamine, cyclohexanone, and thiocyanic acid, undergoes thermal recyclization to 1-methyl-2-thio-4-imino-5-spirocyclohexanehydantoin. The stereochemical and structural features and properties of the 2-thiohydantoins are analyzed on the basis of the data of x-ray structural analysis and geometrical modeling.
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