An easy and rapid, metal mediated method for the isolation of caffeine from the leaves of Thea sinensis. | [Scientific khyber • 1995]

Author(s):

1. M. Idrees Zaidi: Chemistry Department, Islamia College, University of Peshawar, Peshawar, Pakistan

2. Christy Munir: Chemistry Department, Quaid-e- Azam University (QAU), Islamabad, Pakistan

3. Ikhtiar Khan: Chemistry Department, University of Peshawar, Peshawar, Pakistan

Abstract:

Copper(II) ions when added to alcoholic extract of Thea sinensis leaves, selectively precipitate caffeine (Caf) as its complex, Cu(II)-Caf. Caffeine was recovered from Cu(II)-Caf complex by subsequent treatment with H2S gas. Complex Cu(II)-Caf and final product caffeine were fully characterized and confirmed by IR, Uv-Vis, CHN, AAS, F.D. & E.I. mass spectrometry and 1H NMR. This method is relatively simple, economical and rapid.

Page(s): 85-88

DOI: DOI not available

Published: Journal: Scientific khyber, Volume: 8, Issue: 2, Year: 1995

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