Majid Momahed Heravi - Department of Physics and Chemistry, Alzahra University, Tehran,P.O. Box ۱۹۹۳۸۹۱۱۷۶, Iran
Hoda Hamidi - Department of Physics and Chemistry, Alzahra University, Tehran,P.O. Box ۱۹۹۳۸۹۱۱۷۶, Iran
Narges Karimi - Department of Physics and Chemistry, Alzahra University, Tehran,P.O. Box ۱۹۹۳۸۹۱۱۷۶, Iran
Akram Amouchi - Department of Physics and Chemistry, Alzahra University, Tehran,P.O. Box ۱۹۹۳۸۹۱۱۷۶, Iran

An efficient and facile procedure has been developed for the ring opening of epoxides with nitrogen heterocycles such as indole and imidazole in the presence of Caro s acid-silica gel (CA-SiO2) as catalyst in solventless system. The reactions were administered underneath Solvent-free conditions. The current methodology offers many benefits like good yields, easy procedure, simple work-up and ecofriendly reaction condition. The catalyst is well ready, stable and economical underneath the reaction conditions.

Regioselectivity, Indole, Imidazole, Epoxide, Caro s acid-silica gel