Reductive Dehalogenation of Monobromo- and Tribromoacetic Acid by Sodium Borohydride Catalyzed by Gold Nanoparticles Entrapped in Sol–Gel Matrices Follows Different Pathways

Jaydeep Adhikary, Michael Meistelman, Ariela Burg, Dror Shamir, Dan Meyerstein, Yael Albo

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

An efficient, green, and reusable system comprising gold nanoparticles entrapped in an organically modified sol–gel silica matrix was found to catalyze the reduction of monobromo- and tribromoacetic acid by NaBH4. Interestingly, the reduction of tribromoacetic acid yielded succinic acid along with acetic acid, whereas monobromoacetic acid was reduced only to acetic acid. The relative yields of succinic acid and acetic acid depended on the rate of addition of BH4. Slow addition resulted in the formation of succinic acid as the major product. A variable product distribution was achieved as a result of the different pathways for dehalogenation.

Original languageEnglish
Pages (from-to)1510-1515
Number of pages6
JournalEuropean Journal of Inorganic Chemistry
Volume2017
Issue number11
DOIs
StatePublished - 17 Mar 2017

Keywords

  • Dehalogenation
  • Gold
  • Nanoparticles
  • Radicals
  • Sol–gel processes

ASJC Scopus subject areas

  • Inorganic Chemistry

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