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- W4313906031 abstract "Abstract. Alrubaie I, Salim AT, Majeed MM, Radhi AJ. 2022. Synthesis of novel polymer quaternary ammonium salt derived from glucose as a phase transfer catalyst. Nusantara Bioscience 14: 25-33. Some new polymer containing quaternary ammonium salts based-carbohydrate starting from methyl-4,6-O-benzylidene-glucopyranoside have been prepared. The ammonium groups are connected to the glucose structure in various positions (2 and 3). Our synthesis used methyl-4,6-O-benzylidene-a-D-glucopyranoside through nucleophilic reagents to produce the main intermediates. The monomer glucose- quaternary ammonium salts are immobilized on the polyvinyl azide to give the final structure of the Polymer-Supported quaternary ammonium salts. In certain new kinds of phase transfer catalysts, the effectiveness of the polymer glucose-quaternary ammonium salts was tested in the Williamson etherification. The ether synthesis is a typical example of using a phase transfer catalyst. The reactions were performed in a liquid-liquid two-phase system, applying a mixture of toluene and 50% solution of aqueous sodium hydroxide in the presence of a 20 mg/mmol catalyst (compound 9). Compared to other derivatives, the reaction of 4-nitrophenol with dibromoethylene gives the highest yields. On the other hand, compound 9 with the C16 chain gives high activity in the phase transfer catalyst." @default.
- W4313906031 created "2023-01-10" @default.
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- W4313906031 date "2022-02-15" @default.
- W4313906031 modified "2023-10-05" @default.
- W4313906031 title "Synthesis of novel polymer quaternary ammonium salt derived from glucose as a phase transfer catalyst" @default.
- W4313906031 doi "https://doi.org/10.13057/nusbiosci/n140103" @default.
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