Journal
QUIMICA NOVA
Volume 28, Issue 2, Pages 183-187Publisher
SOC BRASILEIRA QUIMICA
DOI: 10.1590/S0100-40422005000200003
Keywords
Burseraceae; triterpenes; thernial analysis
Categories
Ask authors/readers for more resources
THE Protium heptaphyllum RESIN: ISOLATION, STRUCTURAL CHARACTERIZATION AND EVALUATION OF THERMAL PROPERTIES. Three mixtures of triterpenes, (maniladiol and breine; alpha and beta-amyrin; lupenone, alpha and beta-amyrinone) were isolated from Protium heptaphyllum March resin. The structural identification was based on NMR and mass spectrometry data. Lupenone, and alpha and beta-amyrinone were not reported before as constituents of this resin. The resin was submitted to methylation and acetylation reactions. The Pure and derivatized resins and the mixtures (maniladiol and breine; alpha and beta-amyrin) were analyzed by TG and DSC. The TG curves revealed that the derivatization decreases the thermal stability of the resin. The DSC curves showed peaks that can be assigned to evaporation and phase transitions processes.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available