Abstract:

2,5-di-tert-butyl-1,4-di-(p-phenylene nitriles oxyl) benzene was synthesized from the nucleophilic substitution reaction of 4 - fluorobenzonitrile with 2,5 - di-tert-butyl- p-dihydroxybenzene(yield 87.00%,white crystals,mp280℃). Then 2,5-di-tert-butyl-1,4-di-(p-benzoic acid oxyl) benzene with two ether bond and two tert-butyl was obtained by the alkaline hydrolysis of 2,5-di-tert-butyl-1,4-di-(p-phenylene nitriles oxyl) benzene (yield 72.78%,white acicular crystals,mp>340℃). The chemical structure of this product was confirmed by means of elemental analysis , IR, ¹H NMR,¹³C NMR and  MS.

Key words: di-tert-butyl-di-(p-benzoic acid oxyl) benzene,synthesis,characterization