Thiocyanates and Isothiocyanates

Thiocyanates and isothiocyanates are sulfur- and nitrogen-containing reagents widely used in pharmaceuticals, agrochemicals, polymer chemistry, and ligand synthesis. Their strong nucleophilicity and ambident reactivity enable formation of thioamides, thioureas, heterocycles, and organosulfur compounds. Isothiocyanates are essential in peptide chemistry, bioconjugation, and fluorescent labeling due to their selective reaction with amines. Thiocyanates participate in substitution, oxidation, cyclization, and metal coordination processes. Their unique electronic structure supports applications in catalysts, dyes, and functional materials. The versatility and high reactivity of these reagents make them powerful tools in both laboratory synthesis and industrial chemistry.