Taylor & Francis Group
Browse
lsyc_a_1694690_sm9341.docx (1.6 MB)

Highly efficient green synthesis of the photochromic spironaphthoxazines using an eco-friendly choline hydroxide catalyst

Download (1.6 MB)
journal contribution
posted on 2019-11-28, 10:49 authored by Shailesh N. Vajekar, Ganapati S. Shankarling

A greener route for the synthesis of the photochromic spironaphthoxazines employing a highly efficient, biodegradable and recyclable choline hydroxide catalyst in an aqueous medium has been described. This methodology offers diverse advantages such as mild reaction conditions, short reaction time (1 h), excellent yields (up to 91%), and operational simplicity that make it a useful and attractive option for the synthesis of the spironaphthoxazines. The choline hydroxide showed excellent catalytic performance until five recycles without significant loss of activity. The structures of synthesized spironaphthoxazines were deduced by their 1H NMR spectra and melting points.

Funding

The authors acknowledge their sincere gratitude to the University Grant Commission (UGC), New Delhi for funding this research work under the scheme of Minor Research Project.

History

Usage metrics

    Synthetic Communications

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC