SciELO - Scientific Electronic Library Online

 
vol.72Kinetic Approach to Determine 3-Amino Methyl Hexanoic Acid in Pharmaceutical FormulationsThe South African Journal of Chemistry 1918-2018: A Celebration author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Article

Indicators

Related links

  • On index processCited by Google
  • On index processSimilars in Google

Share


South African Journal of Chemistry

On-line version ISSN 1996-840X
Print version ISSN 0379-4350

Abstract

KHALIL, Behzad; ATASHRAZM, Aref  and  RASOULIAN, Mona. 2,4-Dioxo-1,3-diazaspiro[4,5]decane-3-sulfonic Acid as a Novel Solid Phase Halogen-free Acid Catalyst: Preparation, Characterization and Evaluation. S.Afr.j.chem. (Online) [online]. 2019, vol.72, pp.195-200. ISSN 1996-840X.  http://dx.doi.org/10.17159/0379-4350/2019/v72a25.

N-sulfonated cyclohexylhydantoin (NSCH), a new N-sulfonic acid compound, was prepared and characterized using FT-IR, NMR, 13C NMR, UV-Vis and TGA analysis. The potential catalyst efficiency was examined, using synthesis of chromene, xanthene and hydroquinoline derivatives under solvent-free conditions. All of the examined model reactions gave excellent yields, and required short reaction times. Simple catalyst preparation and work-up under mild reaction condition, with low cost and the ability to recover the catalyst for reuse without significant loss of activity are some of the notable advantages of the introduced catalyst.

Keywords : Hydantoin; N-sulfonated acidic catalyst; chromene; xanthene; hydroquinoline.

        · text in English     · English ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License