Characterization and Application of SO3H-functionalized Phthalimide (SFP) as an Efficient and Recyclable Catalyst for the Solvent-free Synthesis of 2-Amino-4Hchromenes, By Abdolkarim Zare

Research

Title	Characterization and Application of SO3H-functionalized Phthalimide (SFP) as an Efficient and Recyclable Catalyst for the Solvent-free Synthesis of 2-Amino-4Hchromenes
Type	Article
Keywords	SO3H-functionalized phthalimide (SFP), SO3H-containing solid acid, 2-Amino-4H-chromenes, Solvent-free, Microwave
Journal	Organic Chemistry Research
DOI	10.22036/ORG.CHEM..2016.13582
Researchers	A. Pourkazemi (First researcher) , Abdolkarim Zare (Second researcher)

Abstract

In this research, SO3H-functionalized phthalimide (SFP) has been prepared through simple reaction of phthalimide with chlorosulfonic acid, and characterized using FT-IR, 1H NMR, 13C 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 2-amino-4H-chromenes by the one-pot multi-component reaction of aromatic aldehydes with malononitrile and 1-naphthol under thermal (70 °C) and microwave (540 W) conditions.