title: Surfactants of biological origin: The role of Mo(VI) and microwaves in the synthesis of xylan-based non-ionic surfactants.
abstract: Microwave-assisted, phosphomolybdic acid (PMoA) catalyzed, glycosylation of unprotected d-xylose and d-lyxose, obtained after tandem Mo(VI)-catalyzed xylan hydrolysis-epimerization reaction, provides alkyl xylosides and lyxosides in short reaction times. A homologous series of amphiphilic alkyl pentosides varying in chain structure (C8-C14) was prepared in very good yields (38-73%). A new catalytic approach using the reusable heterogeneous PMoA/SiO2 catalyst provides benefits in terms of yields, environmental safety, operational simplicity, and thus opens new perspectives for the rational hemicellulose biomass utilization.
authors.affiliation: Institute of Chemistry, Slovak Academy of Sciences, SK-845 38 Bratislava, Slovak Republic. Electronic address: Zuzana.Hricoviniova@savba.sk.
authors.forename: Zuzana
authors.initials: Z
authors.lastname: Hricovíniová
mesh_terms: D002384:Catalysis; D060326:Chemistry Techniques, Synthetic; D006868:Hydrolysis; D008872:Microwaves; D008982:Molybdenum / Q000737:chemistry*; D058428:Silica Gel / Q000737:chemistry; D013501:Surface-Active Agents / Q000138:chemical synthesis* / Q000737:chemistry*; D014990:Xylans / Q000138:chemical synthesis* / Q000737:chemistry*
chemical_list: D013501:Surface-Active Agents; D014990:Xylans; D058428:Silica Gel; D008982:Molybdenum
keywords: Amphiphilic alkyl pentosides; Bio-surfactants; Heterogeneous catalysis; Xylan