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All Journal Indonesian Journal of Chemistry
Made Kurnia Wiastuti Giri
Study Program of Medicine, Faculty of Medicine, Ganesha University of Education, Singaraja 81117, Bali, Indonesia
Chemical Engineering, Chemistry & Bioengineering Chemistry

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Phase Transfer Catalyzed Preparation of 4-Methylbenzenesulfonyl Imidazole for Regioselective Synthesis of Mono-6-(4-methylbenzenesulfonyl)-β-cyclodextrin I Wayan Muderawan; I Wayan Mudianta; Made Kurnia Wiastuti Giri
Indonesian Journal of Chemistry Vol 22, No 5 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.70252

Abstract

The preparation of 4-methylbenzenesulfonyl imidazole by using triethylamine as an effective phase‐transfer catalyst (PTC) under mild biphasic conditions has been studied intensively. The method can be used for large-scale preparation with high purity and high yield of 4-methylbenzene-sulfonyl imidazole. The result in 4-methylbenzenesulfonyl imidazole has been successfully applied for the regioselective synthesis of mono-6-(4-methylbenzenesulfonyl)-β-cyclodextrin in an aqueous medium. This synthetic methodology concept, together with the synthetic versatility of PTC, provides a general and reliable general strategy for the practical and industrial regioselective synthesis of highly valuable mono-6-(4-methylbenzenesulfonyl)-β-cyclodextrin as a key intermediate for the single functional isomer mono-substituted cyclodextrin derivatives. As characterized by FTIR, NMR and mass spectrometry, mono-6-(4-methylbenzenesulfonyl)-β-cyclodextrin was obtained in high purity.
Co-Authors I Wayan Muderawan I Wayan Mudianta