ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Phthalimide-N-sulfonic acid, an efficient catalyst for the synthesis of various isoindoline-1,3-dione derivatives

Davood Habibi and Hossein Mohammadkhani Pordanjani

Bu-Ali Sina University, Hamedan, Iran

E-mail: davood.habibi@gmail.com

Abstract: An environmentally friendly method is described for the synthesis of various isoindoline-1,3-dione derivatives from the reaction of phthalic anhydride with aromatic/aliphatic amines in ethanol at 80 °C by phthalimide-N-sulfonic acid as an efficient heterogeneous acid catalyst. Some advantages include the metal-free and environmentally friendly protocol, simple operation and reusable processes, easy recovery, short reaction times, and high yields.

Keywords: Phthalic anhydride; Amines; Phthalimide-N-sulfonic acid; Isoindoline-1,3-diones; Heterogeneous acid catalyst

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-017-0223-7

Chemical Papers 71 (11) 2293–2299 (2017)