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Daniel Tarigan
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Mulawarman University, Jl. Barong Tongkok No.4, Kampus Gn. Kelua, Samarinda
Chemical Engineering, Chemistry & Bioengineering Chemistry

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SYNTHESIS OF SURFACTANS DILAUROYL MALTOSE THROUGH ACETILATION REACTION OF MALTOSE FOLLOWED BY TRANSESTERIFICATION REACTION WITH METHYL LAURATE Daniel Tarigan
Indonesian Journal of Chemistry Vol 9, No 3 (2009)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (207.949 KB) | DOI: 10.22146/ijc.21513

Abstract

Maltose has been partially acetylated from the reaction of melted maltose and acetic anhydride without solvent and catalyst to produce maltocyl acetate with the yield of 67%. Lauryc acid can be methanolized using H2SO4 as the catalyst to produce methyl laurate with the yield of 92%. The transesterification of methyl laurate and maltocyl acetate in methanol using sodium methoxyde as the catalyst at reflux, yielded a novel compound dilauroyl maltose after isolated by column chromatography, with the yield of 59%. Methyl laurate, maltocyl acetate, and dilauroyl maltose were confirmed by FT-IR and 'H-NMR spectroscopy, and the surface tension of dilauroyl maltose solution  was determined by Du-Nuoy tensiometer to obtain the HLB value of 2.67.
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