Abstract

Many substituted anilines were converted into the corresponding azoxy benzenes as major products, by hydrogen peroxide, using Preyssler catalyst. The ability of various Preyssler catalysts as pure, H 14[NaP 5W 30O 110], mixed addenda, H 14[NaP 5W 29MoO 110], and cetylpyridinium acidic salt, was investigated. In all cases, the highest yield of azoxy compounds was observed, using H 14[NaP 5W 30O 110] as catalyst. The oxidations of anilines with 30% H 2O 2 catalyzed by Preyssler catalysts in various solvents with different molar ratio of amine to oxidant, have been investigated and the results showed that the reaction yields were affected by changing the solvent as well as molar ratio of amine:oxidant.

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