Michelle, Michelle and Sutanto, Hery and Anita, Yulia (2015) Synthesis of Vanillin Derivative Using CuCl(OH).TMEDA Catalyst. Bachelor thesis, Swiss German University.

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Abstract

Vanillin has phenolic group in its structure which enabled this molecule to become antioxidant. This research investigated synthesis reaction of vanillin derivatives using a metal catalyst, namely CuCl(OH).TMEDA. This synthesis reaction used oxidative coupling mechanism under aerobic condition at room temperature. The synthesis product was analyzed using thin layer chromatography and further purified with column chromatography. One isolate from column chromatography was analyzed using LC/MS/MS. LC/MS/MS spectrum supported the facts that the synthesis product was a dimer of vanillin. The isolate product of synthesis reaction was analyzed for its antioxidant activity using DPPH radical scavenging assay. According to previous research, dimer of phenol has higher antioxidant activity than its monomer, however dimer of vanillin synthesized using CuCl(OH).TMEDA has lower antioxidant activity. The decrease in antioxidant activity was suspected from the structure which present in keto form.

Item Type:	Thesis (Bachelor)
Uncontrolled Keywords:	Vanillin; CuCl(OH).TMEDA; Catalyst; Synthesis; Dimerization; Antioxidant
Subjects:	Q Science > QK Botany > QK898 Anthocyanins T Technology > TP Chemical technology > TP368 Food processing and manufacture
Divisions:	Faculty of Life Sciences and Technology > Department of Food Technology
Depositing User:	Atroridho Rizky
Date Deposited:	29 Dec 2020 14:51
Last Modified:	29 Dec 2020 14:51
URI:	http://repository.sgu.ac.id/id/eprint/1650

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