Open AccessSINTESIS NATRIUM PENTAGAMAVUNONAT DAN UJI STABILITASNYA MENGGUNAKAN SPEKTROFOTOMETER UV-Visible
Author(s) -
Ely Setiawan,
Trisnowati Trisnowati,
Dadan Hermawan
Publication year - 2006
Publication title -
molekul
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.125
H-Index - 2
eISSN - 2503-0310
pISSN - 1907-9761
DOI - 10.20884/1.jm.2006.1.1.19
Subject(s) - chemistry , sodium ethoxide , sodium , methanol , tetrahydrofuran , solvent , nuclear chemistry , proton nmr , visible spectrum , ethanol , organic chemistry , materials science , optoelectronics
A research on the synthesis of sodium pentagamavunonat (Na-PGV-0) and its stability test using UV-Visible spectrophotometer were carried out. The synthesis of Na-PGV-0 carried out by reacting PGV-0 in tetrahydrofuran solvent refluxed with sodium ethoxide in mol comparison (1:2) for two hours. Structure elucidation by spectroscopic methods using UV-Visible, IR, 1H-NMR, 13C-NMR and stability test in water using UV-Visible spectrophotometer. The reaction yields 107,21 % (% w/w) products. A products was soluble in water and methanol. Structure elucidation results indicated that the formed compound where the OH phenolic of pentagamavunon-0 was replaced by sodium ions. Stability test shows that decreasing of sodium