Synthesis of benzimidazole using plant assisted zinc sulphide by green approach

We have developed the use of the green approach as technique in the presence of plant-assisted zinc sulphide nanoparticles derived from the euphorbiaceous family. A catalyst is described as an ecologically safe and effective method for producing benzimidazole derivatives. Aromatic aldehyde condensed with the Orthophenyl diamine was followed by a Cyclisation process, which resulted in process of the synthesis of the matching benzimidazole up to 93-95 percent yields. This approach might be used to make benzothiazole and benzoxazoles derivatives as well.