Graphene oxide as a heterogeneous reagent promoted synthesis of 2-substituted 1,3-benzazoles in water

Dariush Khalili, Ali Reza Banazadeh

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

An efficient chemical method for the synthesis of benzimidazoles, benzothiazoles, and benzoxazoles has been developed through the condensation of various aldehydes with o-phenylenediamine, o-aminothiophenol, and o-aminophenol using graphene oxide (GO) as an oxidant in water. These benzazoles are also prepared through a one-pot oxidation/condensation tandem process by reacting alcohols with 2-amino-(thio)phenol/aniline in the presence of GO in poly(ethylene glycol) as a safe media. Moreover, this carbonaceous material could be readily separated using a simple filtration.

Original languageEnglish
Pages (from-to)1693-1706
Number of pages14
JournalBulletin of the Chemical Society of Japan
Volume88
Issue number12
DOIs
StatePublished - 2015

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