ZrO2 and Rice-Husk-Xanthate Adduct: An Efficient Bioderived Catalyst for Synthesis of Spiro[4H-pyran-4,3′-indoline]s

The reaction of dry and pulverized rice husk with alkaline CS 2 followed by treatment of the resulting xanthate derivative with zirconyloxychloride at room temperature led to functionalization of the xanthated biomass with sodium zirconate grouping. The as-prepared sodium salt of the rice-husk xanth...

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Bibliographic Details
Published inPolycyclic aromatic compounds Vol. 42; no. 10; pp. 7217 - 7231
Main Authors Freidooni, Jannat, Rad-Moghadam, Kurosh, Saeedi-Mirakmahaleh, Maedeh
Format Journal Article
LanguageEnglish
Published Philadelphia Taylor & Francis 26.11.2022
Taylor & Francis Ltd
Subjects
Catalysts
Chemical synthesis
heterogeneous catalysis
nano-bioorganometallic
Rice
Rice husk
Room temperature
Sodium
Sodium salts
spiro-oxindoles
xanthate
zirconate
Zirconium dioxide
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Summary:The reaction of dry and pulverized rice husk with alkaline CS 2 followed by treatment of the resulting xanthate derivative with zirconyloxychloride at room temperature led to functionalization of the xanthated biomass with sodium zirconate grouping. The as-prepared sodium salt of the rice-husk xanthatozirconate was characterized physicochemically and found to be an efficient, robust, and recyclable catalyst for the three-component synthesis of some spiro[4H-pyran-4,3′-indoline]s in water.
ISSN:1040-6638
1563-5333
DOI:10.1080/10406638.2021.1998145