Nashrieh Shimi va Mohandesi Shimi Iran

Nashrieh Shimi va Mohandesi Shimi Iran

The Synthesis of Allylic Esters via Direct Allylic C–H Bonds Oxidation of Cycloolefins in the Presence of Copper Oxide Nanoparticles and Nanoporous Silica

Document Type : Research Article

Authors
Saadi Samadi
Mojgan Samadi
Laboratory of Asymmetric Synthesis, Department of Chemistry, Faculty of Sciences, University of Kurdistan, Sanandaj, I.R. IRAN
Abstract
Copper Oxide(CuO) nanoparticles and nanoporous silica such as MCM-41 and SBA-15 were synthesized and characterized by Fourier Transform InfraRed (FT-IR) spectroscopy, X-Ray Diffraction (XRD), and Sscanning Electron Microscopy (SEM). The synthesized copper oxide nanocatalyst was applied in allylic oxidation of cycloolefinsvia C–H bonds activation by tert-butyl-p-nitrobenzoperoxoate as oxidant and in the presence of nanoporous silica as additive. Allylic esters were obtained in good yields (up to 90%) and reasonable reaction times. Also, the recovered catalyst was applicable in the allylic oxidation reaction for four times without loss in catalytic reactivity and yield. The structure of tert-butyl-p-nitrobenzoperoxoate and allylic esters were characterized by 1HNMR, and 13CNMR spectroscopy
Keywords
CuO nanoparticles
Allylic oxidation
C–H bond activation
Cycloolefins
Nanoporous Silica
Allylic ester

Subjects

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