SINTESIS FRUKTON DARI ETIL ASETOASETAT DAN ETILEN GLIKOL MENGGUNAKAN KATALIS ASAM PARA TOLUEN SULFONAT

• Main Author: Sopi Alawiah, - (Author)
• Format: Book
• Published: 2022-08-25.
• Subjects: Thesis; NonPeerReviewed
• Online Access: Link Metadata

Summary

ABSTRAK Frukton (etil-2-metil-1,3-dioksolan-2-asetat) merupakan wewangian dengan bau menyerupai apel yang banyak digunakan dalam industri kosmetik, detergen dan farmasi. Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan teknik azeotrop pada sintesis frukton dari etil asetoasetat dengan etilen glikol menggunakan katalis asam para toluen sulfonat, serta penentuan kondisi optimum reaksi. Sintesis frukton dilakukan menggunakan metode refluks yang dilengkapi set alat dean-stark dengan penambahan sikloheksana. Penentuan kondisi optimum dilakukan menggunakan variasi suhu, jumlah sikloheksana, rasio mol pereaksi, jumlah katalis dan lama waktu reaksi. Variasi suhu reaksi dilakukan pada suhu 78oC, 80oC dan 82oC. Variasi jumlah sikloheksana dilakukan pada 20 mL, 30 mL dan 40 mL. Variasi rasio mol pereaksi antara etil asetoasetat dan etilen glikol 1:1,5; 1:2 dan 1:2,5. Variasi mol katalis asam para toluen sulfonat sebanyak 0,004 mol, 0,006 mol, 0,008 mol dan 0,01 mol. Variasi waktu reaksi dilakukan selama 30 menit, 60 menit, 90 menit, 120 menit, 150 menit, 180 menit dan 210 menit. Hasil sintesis dianalisis menggunakan Kromatografi Gas (GC) dan Kromatografi Gas Spektrometri Massa (GC-MS). Ditemukan penggunaan teknik azeotrop menghasilkan frukton yang lebih banyak dibandingkan dengan tanpa penggunaan azeotrop. Kondisi optimum yang diperoleh pada sintesis frukton yaitu pada suhu 80oC, sikloheksana 30 mL, rasio mol etila setoasetat dan etilen glikol 1:2, jumlah katalis 0,006 mol dengan lama waktu reaksi 1,5 jam. Frukton yang dihasilkan sebanyak 96,15%. Kata kunci: Frukton, Sintesis, Asetalisasi, Asam Para Toluen Sulfonat. ABSTRACT Fructone (ethyl-2-methyl-1,3-dioxolan-2-acetate) is an apple-like fragrance that is widely used in the cosmetic, detergent and pharmaceutical industries. This study aims to determine the effect of adding azeotropic technique on the synthesis of fructone from ethyl acetoacetate with ethylene glycol using para toluene sulfonic acid as a catalyst, and to determine the optimum reaction conditions. Fructone synthesis was carried out using the reflux method which was equipped with a dean-stark kit with the addition of cyclohexane. Determination of optimum conditions was carried out using variations in temperature, amount of cyclohexane, mole ratio of reagents, amount of catalyst and length of reaction time. Variations of reaction temperature were carried out at 78oC, 80oC and 82oC. Variations in the amount of cyclohexane were carried out at 20 mL, 30 mL and 40 mL. Variation of reagent mole between ethyl acetoacetate and ethylene glycol were 1:1.5; 1:2 and 1:2.5. The mole variations of para toluene sulfonic acid catalyst were 0.004 mol, 0.006 mol, 0.008 mol and 0.01 mol. Variations in reaction time were carried out for 30 minutes, 60 minutes, 90 minutes, 120 minutes, 150 minutes, 180 minutes and 210 minutes. The synthesis results were analyzed using Gas Chromatography (GC) and Gas Chromatography Mass Spectrometry (GC-MS). It was found that the use of the azeotrope technique produced more fructones than the one without azeotrope. The optimum conditions obtained in the synthesis of fructones were at a temperature of 80oC, with the addition of 30 mL cyclohexane, mole ratio of ethyl cetoacetate and ethylene glycol 1:2, the amount of catalyst was 0.006 mol with a reaction time of 1.5 hours. The amount of fructone produced is 96.15%. Key word: Fructone, Synthesis, Acetalization, Para-Toluene Sulfonic Acid.

Item Description

http://repository.upi.edu/80644/1/S_KIM_1802070_Title.pdf
http://repository.upi.edu/80644/2/S_KIM_1802070_Chapter1.pdf
http://repository.upi.edu/80644/3/S_KIM_1802070_Chapter2.pdf
http://repository.upi.edu/80644/4/S_KIM_1802070_Chapter3.pdf
http://repository.upi.edu/80644/5/S_KIM_1802070_Chapter4.pdf
http://repository.upi.edu/80644/6/S_KIM_1802070_Chapter5.pdf
http://repository.upi.edu/80644/7/S_KIM_1802070_Appendix.pdf