Magnetically recoverable lanthanum hydroxide as an efficient catalyst for Aerobic Oxidative Conversions of primary alcohols to the nitriles |
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Authors: | Fariborz Ziaee Mostafa Gholizadeh Seyed Mohammad Seyedi |
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Institution: | Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, I.R., Iran |
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Abstract: | Herein we report a novel magnetically recoverable lanthanum hydroxide nanoparticles for oxidative synthesis of nitriles directly from corresponding alcohols with ammonia as nitrogen source. The procedure for the preparation and characterization of La(OH)3/Fe3O4 magnetic nanoparticles were investigated and the scope and generality of the method was explored for a series of structurally diverse primary alcohols with electron‐donating and electron‐withdrawing groups. The best result was observed when 5 mol% of La with respect to the benzyl alcohol was used at reflux condition under O2 atmosphere. The La(OH)3/Fe3O4 magnetic nanoparticles could be easily isolated from the reaction mixture with an external magnet and reused at least 5 times without significant loss in activity. |
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Keywords: | direct oxidative nitrile synthesis Lanthanum hydroxide magnetic catalyst primary alcohols |
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