Catalytic conversion of substituted and un-substituted cyclohexanone into corresponding enones and phenols by nanocatalysts under acid or base-free reaction conditions

Add time:07/11/2019    Source:sciencedirect.com

The catalytic conversion of substituted and unsubstituted cyclohexanones to the corresponding enones and aromatic alcohol catalyzed by Pd, Pd-1, Pd-cube, Cu, Ni, [email protected] and Ni-Sn nanocatalysts has been studied in the presence of O2 as the oxidant without using any additives i.e. acid or base or ligand. The optimization of experimental parameters for dehydrogenation of cyclohexanones was established to achieve maximum yield of the product by using Pd nanocatalyst. The conversion of cyclohexanone, cyclohexenone, 3-methyl cyclohexanone and 3-methyl cyclohexenone catalyzed by Pd nanocatalyst at 80 °C, 10 atm O2 pressure after 24 h, led to a 79%, 49%, 62% and 25% yields of desired products, respectively. Then, the conversion of substituted and unsubstituted cyclohexanones investigated in the presence of various nanocatalysts i.e., Pd-1, Pd-cube, Cu, Ni, [email protected] and Ni-Sn nanoparticles and was compared their percentage yields.

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