yttrium aluminum garnet (yag: al5y3o12) as an efficient catalyst for the synthesis of benzimidazole and benzoxazole derivatives

Yttrium aluminum garnet (yag) was used to efficiently catalyzed andas an ecofriendly method and efficient catalyst for the synthesis of benzimidazole and benzoxazole derivatives by through the onepot cyclocondensation of various aldehydes with ophenylenediamines and oaminophenol in ethanol at 70 °c. the present method revealed several advantages such as high yields, easy purification, mild reaction conditions, easy workup, and short reaction times. also, the nanoparticles (yag) were found to be easily synthesized, cheap, air and moisture stable, heterogenic, and green catalyst.