Catalysis by Amberlite IR-120 resin: a rapid and green method for the synthesis of phenols from arylboronic acids under metal, ligand, and base-free conditions

A clean process has been developed for the ipso-hydroxylation of aryl and heteroaryl boronic acids to the corresponding phenols using commercially available and recyclable Amberlite IR-120 resin and aqueous hydrogen peroxide as an oxidizing agent. The ion-exchange sulfonic acid resin catalyst could...

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Bibliographic Details
Published in:Tetrahedron letters 2012-11, Vol.53 (45), p.6004-6007
Main Authors: Mulakayala, Naveen, Ismail, Kumar, Kottur Mohan, Rapolu, Rajesh Kumar, Kandagatla, Bhaskar, Rao, Pallavi, Oruganti, Srinivas, Pal, Manojit
Format: Article
Language:English
Subjects:
Amberlite IR-120 resin
Arylboronic acid
Catalysis
Green synthesis
Phenol
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Summary:A clean process has been developed for the ipso-hydroxylation of aryl and heteroaryl boronic acids to the corresponding phenols using commercially available and recyclable Amberlite IR-120 resin and aqueous hydrogen peroxide as an oxidizing agent. The ion-exchange sulfonic acid resin catalyst could be readily recycled by filtration and directly reused at least four times without any significant loss of activity.
ISSN:0040-4039
1873-3581
DOI:10.1016/j.tetlet.2012.08.087