Widisetyanti, Rahayu Kinanthi (2017) Sintesis Senyawa Schiff Base dari Sitronelal dalam Minyak Jeruk Purut dengan o-toluidin dan p-nitroanilin serta Uji Aktivitasnya sebagai Antibakteri. Sarjana thesis, Universitas Brawijaya.
Abstract
Sitronelal sebagai senyawa penyusun minyak jeruk purut dapat digunakan untuk sintesis Schiff base yang berfungsi sebagai antibakteri. Sitronelal dalam minyak jeruk purut di reaksikan dengan o-toluidin dan p-nitroanilin menggunakan katalis H2SO4 dengan metode refluk dan microwave. Hasil sintesis diperoleh N-sitronelilnitroanilin dan N-sitroneliltoluidin berupa cairan kuning dan tidak berwarna. Produk crude (tidak ditambah Na2CO3) dikarakterisasi menggunakan spektrofotometer UV-VIS, FTIR dan produk setelah ditambahkan Na2CO3, dikarakterisasi menggunakan FTIR. Berdasarkan hasil sintesis waktu reaksi dan metode paling optimum adalah 2 jam menggunakan metode refluk. Massa dan %yield hasil sintesis metode refluk adalah 0,91g (5,35%) dan 0,6 g (2,97%) untuk N-sitroneliltoluidin dan N-sitronelilnitroanilin. Hasil karakterisasi menggunakan spektrofotometer UV-VIS menunjukan adanya transisi
English Abstract
Citronellal as compound of kaffir lime oil can be made to synthesis Schiff base which as antibacterial. The citronellal in kaffir lime oil was reacted with o-toluidine and p-nitroaniline using H2SO4 catalyst by reflux and microwave method. The product synthesis obtained N-citronellilnitroaniline and N-citroneliltoluidine as yellow and colorless liquid. The crude product (not added Na2CO3) were characterized with UV-VIS spectrophotometer, FTIR and the added Na2CO3 were characterized by FTIR. Based on the synthesis of reaction time and the most optimum method is 2 hours using reflux method. Massa and %yield of product is 0,91g (5,35%) and 0,6 g (2,97%) for N-sitroneliltoluidin and N-sitronelilnitroanilin The result of characterization using UV-VIS spectrophotometer shows the transition π → π * (C = N) and n → π * (C = N). On the N-citronellilnitroaniline and N-citroneliltoluidine characterization result using FT-IR shows the absorption of C = N imine group at about 1630 cm-1 wavelength which representing special absorption of Schiff base. The synthesis product before and after Na2CO3 addition did not show any significant change. N-citronellilnitroaniline and N-citroneliltoluidine are more active as antibacterial Staphylococcus aureus than as antibacterial Escherichia coli .
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FMIPA/2017/336/051709676 |
| Uncontrolled Keywords: | Sitronelal, imina, antibakteri, refluk, microwave |
| Subjects: | 500 Natural sciences and mathematics > 584 Liliopsida (Monocotyledons) > 584.9 Poales > 584.92 Panicoideae |
| Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam > Kimia |
| Depositing User: | Nur Cholis |
| Date Deposited: | 25 Oct 2017 02:04 |
| Last Modified: | 23 Nov 2021 07:05 |
| URI: | http://repository.ub.ac.id/id/eprint/4345 |
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