Jump to main content
Jump to site search

Issue 12, 2017
Previous Article Next Article

Covalently anchored sulfamic acid on cellulose as heterogeneous solid acid catalyst for the synthesis of structurally symmetrical and unsymmetrical 1,4-dihydropyridine derivatives

Author affiliations

Abstract

A novel heterogeneous solid acid catalyst has been prepared by covalent grafting of chlorosulphonic acid on amino-functionalized cellulose (Cell–Pr-NHSO3H). The structure of the catalyst was assessed by FT-IR, solid-state CP/MAS 13C-NMR spectroscopy, field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray (EDX), thermogravimetric (TGA) and CHNS analysis. The catalytic performance of the heterogeneous acid catalyst is evaluated in the synthesis of structurally symmetrical and unsymmetrical 1,4-dihydropyridines (1,4-DHPs). High conversion, shorter reaction time, cleaner reaction profile, environmentally benign solvent, simple experimental and work-up procedure, and reusability of the catalyst are the striking features of our synthetic route.

Graphical abstract: Covalently anchored sulfamic acid on cellulose as heterogeneous solid acid catalyst for the synthesis of structurally symmetrical and unsymmetrical 1,4-dihydropyridine derivatives

Back to tab navigation

Supplementary files

Publication details

The article was received on 27 Feb 2017, accepted on 10 May 2017 and first published on 11 May 2017


Article type: Paper
DOI: 10.1039/C7NJ00685C
Citation: New J. Chem., 2017,41, 5133-5141
  •   Request permissions

    Covalently anchored sulfamic acid on cellulose as heterogeneous solid acid catalyst for the synthesis of structurally symmetrical and unsymmetrical 1,4-dihydropyridine derivatives

    S. Karhale, C. Bhenki, G. Rashinkar and V. Helavi, New J. Chem., 2017, 41, 5133
    DOI: 10.1039/C7NJ00685C

Search articles by author

Spotlight

Advertisements