▎ 摘　　要

Graphene oxide supported monochlorotriazinyl-beta-cyclodextrin (GO-MCT- beta-CD) as a green nanoreactor was synthesized via a simple chemical bonding method and analyzed by XRD, FT-IR, CHNS, FESEM and Raman spectroscopy. The prepared GO-MCT-beta-CD worked as a nanoreactor for the green oxidation reactions of benzyl alcohol derivatives with N-bromo succinimide to their corresponding aldehydes under green conditions. Depending on the different substituents of various benzyl alcohols, good to excellent yields were obtained and no over-oxidation was observed. It can be considered an attractive methodology due to the use of water in the presence of "solid metal-free nanoreactor" as a green reaction system at the room temperature. Easy separation and excellent reusability of the catalyst were other advantages of this methodology.