Arenesulfonic acid functionalized ordered mesoporous silica as solid acid catalyst for solvent free dehydration of sorbitol to isosorbide

Aasif A. Dabbawala, Jung J. Park, Anil H. Valekar, Dinesh K. Mishra, Jin Soo Hwang

    Research output: Contribution to journalArticlepeer-review

    19 Scopus citations

    Abstract

    Abstract Organosulfonic acid functionalized ordered mesoporous silicas with different moieties have been synthesized and used as solid acid catalysts for solvent free dehydration of sorbitol to isosorbide. In screening experiments with distinct solid acids, the arenesulfonic acid functionalized SBA-15 (Ar/SBA-15) showed higher catalyst performance as compared to propyl and fluorosulfonic acid sites. Under optimum reaction condition, Ar/SBA-15 afforded 100% sorbitol conversion with 71% isosorbide selectivity in 2 h at moderate temperature of 170°C. The high activity of catalyst ascribed to its ordered mesoporous structure and ease to access Brönsted acid sites with high acid strength.

    Original languageBritish English
    Article number4367
    Pages (from-to)207-211
    Number of pages5
    JournalCatalysis Communications
    Volume69
    DOIs
    StatePublished - 9 Jul 2015

    Keywords

    • Dehydration
    • Isosorbide
    • Mesoporous organosilica
    • Selectivity
    • Sorbitol

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