Catalysis Letters p. 3169 - 3175 (2019)
Update date:2022-08-05
Topics:
Dandia, Anshu
Parihar, Sonam
Saini, Pratibha
Rathore, Kuldeep S.
Parewa, Vijay
Abstract: We describe an efficient, clean and metal-free procedure for the synthesis of amides via oxidative amidation of aldehydes with anilines using graphene oxide (GO) as a recyclable catalyst and KBrO3 as a mild oxidant in aqueous medium under microwave irradiation. GO nanosheets were prepared and characterized by XRD, TEM, SEM, and FT-IR, analyses. GO showed high compatibility with KBrO3 in water and offered high TOF value (1.30 × 10?3 mol?g?1 min?1). GO oxygen functionalities catalyze the oxidative amidation effectively in mild condition with high recyclability. A plausible mechanism was proposed by the isolating the intermediate. Graphic Abstract: [Figure not available: see fulltext. ]
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