Arezoo Pourkazemi - Department of Chemistry, Payame Noor University, PO BOX ۱۹۳۹۵-۳۶۹۷, Tehran, Iran
Abdolkarim Zare - Department of Chemistry, Payame Noor University, PO BOX ۱۹۳۹۵-۳۶۹۷, Tehran, Iran

In this research, SO۳H-functionalizedphthalimide (SFP) has been prepared through simple reaction of phthalimide with chlorosulfonic acid, and characterized using FT-IR, ۱H NMR, ۱۳C NMR, SEM (scanning electron microscopy), mass and TG (thermal gravimetric) spectra. Afterward, the solid acid has been utilized as an efficient, green, heterogeneous and recyclable catalyst for the solvent-free synthesis of ۲-amino-۴H-chromenes by the one-pot multi-component reaction of aromatic aldehydes with malononitrile and ۱-naphthol under thermal (۷۰ °C) and microwave (۵۴۰ W) conditions.

SO۳H-functionalized phthalimide (SFP), SO۳H-containing solid acid, ۲-Amino-۴H-chromenes, Solvent-free, Microwave