The Product was preparcd hy 2 - mercapto bcnzimidazole and 3- chloro propyne in propanonc as solvent without phase transfer catalyst.

• 先由邻苯二胺和二硫化碳合成2-巯基苯并咪唑，炔丙醇和三氯化磷合成3-氯丙炔；