title: Ultrasound-promoted green approach for the synthesis of sulfonamides using natural, stable and reusable Natrolite nanozeolite catalyst at room temperature.
abstract: Natural Natrolite nanozeolite has been investigated as an efficient and reusable catalyst for the N-sulfonylation of amines under ultrasound irradiation at room temperature. Compared with traditional methods, the significant advantages for method are green solvent, milder and cleaner conditions, higher purity and yields, shorter reaction time, easier work-up procedure and the lower generation of waste or pollutions. The catalyst can be recovered and reused several times without significant loss of its catalytic activity.
authors: Department of Chemistry, Faculty of Science, University of Qom, Qom 37185-359, Iran. Electronic address: mahmoudnasr81@gmail.com.
authors: Mahmoud
authors: M
authors: Nasrollahzadeh
authors: Ali
authors: A
authors: Ehsani
authors: Akbar
authors: A
authors: Rostami-Vartouni
mesh_terms: D001688:Biological Products / Q000737:chemistry*; D002384:Catalysis; D055598:Chemical Phenomena; D060326:Chemistry Techniques, Synthetic; D055772:Green Chemistry Technology; D006863:Hydrogen-Ion Concentration; D013449:Sulfonamides / Q000138:chemical synthesis* / Q000737:chemistry*; D013696:Temperature; D014465:Ultrasonics; D017641:Zeolites / Q000737:chemistry*
chemical_list: D001688:Biological Products; D013449:Sulfonamides; D017641:Zeolites
keywords: Amine; DTA; FT-IR spectroscopy; Fourier Transform Infrared Spectroscopy; N-Sulfonylation; Natural Natrolite nanozeolite; SEM; TGA; Thermogravimetric analysis; Tosyl chloride; Ultrasound irradiation; X-Ray Fluorescence; X-ray powder diffraction; XRD; XRF; differential thermal analysis; scanning electron microscopy