Abstract:

In this paper, the experimental methods for the synthesis of t-butyl peroxide compounds were discussed, in which benzoyl imidazole and t-butyl hydroperoxide(TBHP) were used as reactants, 1,8-diazabicycloundec-7-ene(DBU) was used as the catalyst and acetonitrile(CH₃CN) was used as the reaction solvent. The effect of catalysts and their dosage, raw material ratios, solvents and temperature on the yield were investigated. A total of 25 target products were obtained under the optimum conditions with yields of 45%~99%. The molecular structures of the products were analyzed by nuclear magnetic resonance spectroscopy(¹H NMR and ¹³C NMR) and mass spectrometry. The method has the advantage of easily available material, easy operation, mild reaction conditions and a wide range of functional group tolerance, and has provided a new idea for the synthesis of t-butyl peroxide compounds.

Key words: benzoylimidazole, t-butyl hydroperoxide, diazabicycloundec-ene catalyst, t-butyl peroxide compounds