Open AccessSynthesis Of L-Menthyl Acetic by Esterification L-Menthol and Acetic Anhydride with Variation Of Time
Author(s) -
Novia Suryani,
Ahmad Ghanaim Fasya,
Rurini Retnowati,
Akyunul Jannah
Publication year - 2020
Publication title -
al-kimia
Language(s) - English
Resource type - Journals
eISSN - 2549-9335
pISSN - 2302-2736
DOI - 10.24252/al-kimia.v8i1.11965
Subject(s) - acetic anhydride , menthol , chemistry , yield (engineering) , catalysis , aroma , acetic acid , organic chemistry , nuclear chemistry , solvent , materials science , food science , metallurgy
l-menthyl acetic is an ester with specific aroma that synthesized by reaction of l-menthol and acetic anhydride and useful in fragrance industry. This paper reports influenced variation of time reaction toward ester product and characteristics l- menthyl acetic based on TLC, FTIR, GC and GC-MS. Reaction using l-menthol, acetic anhydride and catalyst H2SO4 98 % in diethyl eter solvent at temperature 60 °C with variation of time reaction (45, 60, 75, 90, 105 minutes). The result of research is variation of time influence product with highest yield 88,43 % for 90 minutes. Monitoring TLC achived Rf = 0,82; analysis by FTIR achived specific wave number ester 1736,96 cm-1; analysis by GC achived tr = 14,82 minutes and analysis by GC-MS achived tr = 16,13 minutes with base peak m/z = 95.