Abstract
In this work, it is demonstrated that the benzoyl group is an activating group for thioureas in the HgCl2-guanylation reaction. Thus N-benzoyl-thioureas containing electronically neutral and even electron-withdrawing or electron-releasing substituents are converted into guanidines with reasonable yields. In addition, NMR and X-ray structural analyses were performed to understand the intra- and intermolecular features of the synthesized guanidines.
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