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۱Electrochemical behaviour of nifedipine and nitrendipine in chioroform and chioroform–isopropanol mixture
اطلاعات انتشار: Iranian Journal of Chemistry and Chemical Engineering (IJCCE)، هفدهم،شماره۱(پياپي ۱۹)، ۱۹۹۸، سال
تعداد صفحات: ۱۲
The electrochemical behaviour of nifedipine (I), nitrendipine(II) andtheir photodegradation products has been studied by employing electrochemicaltechniques in chloroform and in 1:4 mixture of chloroform–isopropanol using piper–idinium perchlorate (PPC) as supporting electrolyte. It has been shown that I and IIundergo in a 4e, 4H+ irreversible reduction reaction, while the reduction product,phenylhydroxylamine, is oxidized in a 2e, 2H+ reversible process to an unstablenitrosophenyl compound. Photodegradation of I and II by sunlight produces a nitro–sophenyl derivative which is reversibly reduced to the corresponding unstable phenyl–hydroxylamine. No significant change is observed in electrochemical properties of drugsby passing from chloroform to chloroform–isopropanol mixture. The possibility ofanalysis of I and II by dp polarography is also verified.
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