View Item 
      •   IPB Repository
      • Dissertations and Theses
      • Undergraduate Theses
      • UT - Faculty of Mathematics and Natural Sciences
      • UT - Chemistry
      • View Item
      •   IPB Repository
      • Dissertations and Theses
      • Undergraduate Theses
      • UT - Faculty of Mathematics and Natural Sciences
      • UT - Chemistry
      • View Item
      JavaScript is disabled for your browser. Some features of this site may not work without it.

      Optimisasi Sintesis Ester Koniferil dari Eugenol melalui Asetilasi/Benzoilasi, Brominasi, dan Dehidrobrominasi-Substitusi Asetat/Benzoat

      Thumbnail
      View/Open
      Cover (634.5Kb)
      Fullteks (633.9Kb)
      Lampiran (632.8Kb)
      Date
      2023
      Author
      Sadam, Dwiki Al
      Arifin, Budi
      Irfana, Luthfan
      Metadata
      Show full item record
      Abstract
      Ester koniferil telah disintesis dari eugenol melalui tahapan asetilasi/benzoilasi, brominasi, dan dehidrobrominasi substitusi asetat/benzoat, tetapi rendemen yang dihasilkan masih lebih rendah daripada metode sintesis lain yang telah dilaporkan sebelumnya. Oleh karena itu, penelitian ini bertujuan mengoptimisasi sintesis tersebut dengan menghilangkan proses pemurnian menggunakan kromatografi kolom dan work up pada tahap asetilasi/benzoilasi dan brominasi. Eugenol diasetilasi menggunakan anhidrida asetat atau dibenzoilasi menggunakan benzoil klorida. Eugenil asetat dan benzoat kemudian direaksikan dengan bromin dalam kloroform. Kedua produk dibromida selanjutnya didehidrobrominasi dan disubstitusi dengan gugus asetat/benzoat untuk menghasilkan empat jenis ester koniferil. Rendemen keempat ester tersebut tidak jauh berbeda dengan sebelum dioptimisasi, tetapi optimisasi lebih menghemat biaya karena mengurangi penggunaan silika gel untuk kromatografi kolom serta lebih menghemat waktu kerja. Metode optimum satu-wadah ini akan digunakan untuk perbanyakan ester koniferil pada tahap penelitian selanjutnya
       
      Coniferyl esters have been produced from eugenol via acetylation/benzoylation, bromination, and dehydrobromination-substitution acetate/benzoate stages. However, the yield is still lower than the previously reported synthesis methods. As a result, this research aims to optimize the synthesis by eliminating the purification stage using column chromatography and working up the acetylation/benzoylation and bromination steps. Eugenol can be acetylated with acetic anhydride or benzoylated with benzoyl chloride. The eugenyl acetate and benzoate are then treated with bromine in chloroform. The two dibromide products are then dehydrobrominated and replaced with acetate/benzoate groups to generate four types of coniferyl esters. The yields of these four esters are not significantly different from before the optimization. However, the optimization saves money by reducing the consumption of silica gel for column chromatography and saving working time. This one-pot optimal approach could be employed in the following study stage to replicate coniferyl esters
       
      URI
      http://repository.ipb.ac.id/handle/123456789/122655
      Collections
      • UT - Chemistry [2295]

      Copyright © 2020 Library of IPB University
      All rights reserved
      Contact Us | Send Feedback
      Indonesia DSpace Group 
      IPB University Scientific Repository
      UIN Syarif Hidayatullah Institutional Repository
      Universitas Jember Digital Repository
        

       

      Browse

      All of IPB RepositoryCollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

      My Account

      Login

      Application

      google store

      Copyright © 2020 Library of IPB University
      All rights reserved
      Contact Us | Send Feedback
      Indonesia DSpace Group 
      IPB University Scientific Repository
      UIN Syarif Hidayatullah Institutional Repository
      Universitas Jember Digital Repository