Altering the O/C ratio of lignin derived monomers without sacrificing atom efficiency

TitleAltering the O/C ratio of lignin derived monomers without sacrificing atom efficiency
Publication TypeJournal Article
Year of Publication2019
AuthorsSingh, D, Dhepe, PL
JournalChemistrySelect
Volume4
Issue48
Pagination14050-14055
Date PublishedDEC
Type of ArticleArticle
ISSN2365-6549
KeywordsAlcohols, Alkylation, lignin, Monomers, solid acid catalyst, Up-gradation
Abstract

Synthesis of platform and fuel grade chemicals from lignin without losing atom efficiency and lowering O/C ratio is a challenge in a bio-refinery concept. In this work, we report solid acid catalysed alkylation of lignin derived variety of monomers such as guaiacol, veretrole, phenol, anisole, and catechol using numerous alcohols as alkylating agents. Results elaborate that the type of acidity and structure of catalyst play important role in achieving higher dialkylated products (DAP). With 85% conversion of guaiacol, 30.9% DAP formation was achieved at 250 degrees C within 2 h. A unique substrate adsorption study on the catalyst surface and effect of solubility of substrates on the activity of catalyst is evaluated. Catalyst was observed to be recyclable with marginal loss in the activity due to handling error.

DOI10.1002/slct.201903320
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)

1.716

Divison category: 
Catalysis and Inorganic Chemistry

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