THE INFLUENCE OF ADDITIVE REAGENT AND REA CTION MEDIUM ON THE CATALYTIC CHARACTERISTICS OF TPPFECL IN THE BIOMIMETIC OXIDATION OF CYCLOHEXANE WITH PHIO

The influence of additive isopropyl alcohol, pyridine, hydrochloric ac id and sodium hydrate in different quantities on the catalytic charact eristics of chloro tetraphenylporphinato iron TPPFeCl and (TPPFe)(2)O in above reaction was studied, It is found that isopropyl alcohol and pyridine in small amounts could increase the yield of oxidation produc t of cyclohexane. The presence of cyclohexanol could give a longer cat alytic lifetime of TPPFeCl. The catalytic oxidation of cyclohexane cou ld be favourable as a small amount of aqueous NaOH was added; but unfa vourable as hydrochloride acid was added. This reaction was unfavourab le either when the polarity of solvent increased, One of the oxidation products of cyclohexane, cyclohexanone, was verified to be mainly pro duced by oxidizing cyclohexanol directly by PhIO. The presence of TPPF eCl was unfavourable to form cyclohexanone.