Aplikasi Trifenilfosfin dalam Demetilasi Senyawa N-metilpiridinium Iodida

Bambang Cahyono; Ismiyarto Ismiyarto; Alyxia Stellata Aria Ningsih

doi:10.14710/jksa.2.4.112-117

DOI: https://doi.org/10.14710/jksa.2.4.112-117

Aplikasi Trifenilfosfin dalam Demetilasi Senyawa N-metilpiridinium Iodida

Bambang Cahyono

, Ismiyarto Ismiyarto

, Alyxia Stellata Aria Ningsih

Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University, Indonesia

Published: 30 Nov 1999.

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Abstract

Trifenilfosfin (PPh₃) adalah nukleofil lunak dengan potensi tinggi dalam reaksi demetilasi garam amonium siklis. Reaksi demetilasi telah dilakukan terhadap garam amonium hetcrosiklik aromatik, N-metilpiridinium iodida dengan menambahkan PPh₃. Reaksi berlangsung dalam pelarut asetonitril pada temperatur 82°C. Kromatografi lapis tipis (TLC) digunakan untuk mengontrol jalannya reaksi, hasilnya menunjukkan bahwa PPh₃ berperan dalam reaksi demetilasi. Penentuan waktu reaksi dilakukan dengan optimasi waktu reaksi. Hasil analisis menggunakan spektrofotometer UV-Vis menunjukkan bahwa N-metilpiridinium iodida dapat terdemetilasi setelah reaksi berlangsung selama 6 jam dengan transformasi 98 %.

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Keywords: Trifenilfosfin; reaksi demetilasi; N-metilpiridinium iodida

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Section: Research Articles

Language : ID

In Vol 2, No 4 (1999): Volume 2 Issue 4 Year 1999

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