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

Transition Metal‐Free ipso‐Functionalization of Arylboronic Acids and Derivatives

“…For example, the addition of catalytic amounts of iodine or recyclable Amberlite IR-120 resin promoted the reaction to generate a variety of phenols in good yields under mild reaction conditions. [14] …”

ipso‐Hydroxylation of Arylboronic Acids and Boronate Esters by Using Sodium Chlorite as an Oxidant in Water

“…Although this transformation is simple and green, electron‐deficient arylboronic acids give low yields and alkaline hydrogen peroxide can lead to undesirable side reactions. To improve this transformation, I 2 ,7d acidic Al 2 O 3 ,7e and Amberlite IR‐120 resin7f have been used as catalysts with H 2 O 2 and complexes of poly( N ‐vinylpyrrolidone)/hydrogen peroxide and poly(4‐vinylpyridine)/hydrogen peroxide 7g. Other catalysts/reagents used for the transformation of arylboronic acids into phenols include CuSO 4 /phenanthroline,7h NH 2 OH/NaOH,7i potassium peroxymonosulfate,7j photoredox catalysis with the use of visible light,7k and N ‐oxides,7l but the search for better methods still continues 7m,7n.…”

Highly Porous Polycaprolactone Membrane: A Biocompatible Promotor for Oxidative Hydroxylation of Arylboronic Acids

“…As an eco‐friendly oxidant, hydrogen peroxide (aqueous H 2 O 2 ) has been used with various supports, including urea, biosilica, PEG‐400, H 3 BO 3 , Al 2 O 3 , water extract of rice straw ashes, poly(N‐vinylpyrrolidone)/poly(4‐vinylpyridine) . iodine, Amberlite IR‐120, Mont K‐10@AgNPs, and silica chloride, providing a versatile processes for the preparation of phenolic derivatives.…”