Rapid assembly of structurally diverse cyanamides and disulfanes base-mediated aminoalkylation of aryl thiourea

A general method for the preparation of cyanamides and disulfanes from aryl thiourea and halide through a base-mediated strategy is described. Mercaptan and N -aryl cyanamide are the key intermediates in the reaction. The current method is convenient, eco-friendly, and has high yields for the synthesis of substituted cyanamide and functional disulfanes in a one-pot procedure from readily available starting materials. A general one-pot method for the preparation of cyanamides and disulfanes from aryl thioureas and halides via a base-mediated reaction was accomplished.