%0 Journal Article %T Horsetail plant (Equisetum arvense) and horsetail plant ash: application and comparison of their catalytic activities as novel and natural porous lewis acid catalysts for the one-pot green synthesis of 2-amino-4H-chromene derivatives under solvent-free conditions %A Mohtasham, Ni %A Gholizadeh, Mostafa %J Journal of the Iranian Chemical Society %@ 1735-207X %D 2019