Zinc Sulfide (ZnS) Nanoparticles: An Effective Catalyst for Synthesis of Benzoxazole Derivatives

A simple efficient and eco-friendly method has been developed for the synthesis of benzoxazole derivatives by one-pot two-component reaction of o-aminophenol and various aldehydes catalytic by nanoparticles Zn-S use ethanol has been described as solvent at 70 °C. The present method has several advantages such as high yields, easy purification, mild reaction conditions, easy work-up, and short reaction times. Likewise, Zn-S nanoparticles are a catalyst that is easily synthesized, cheap, stable in air and humidity, heterogeneous, and green.