Further studies on the isolation and structure elucidation of the major sesquiterpene lactone component of Mikania cordata (Burm. F.) B.L. Robinson (Compositae)

Date

10-1983

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

William G. Padolina

Abstract

ABSTRACT

ONA, Mary JoeAnne Millar, College of Arts and Sciences, University of the Philippines at Los Banos, October, 1983. Further Studies on the Isolation and Structure Elucidation of the Major Sesquiterpene Lactone Component of Mikania cordata (Burm.f.) B.L. Robinson (Compositae).

Adviser: Dr. William G. Padolina.

The major component of the crude chloroform extract of the dried leaves of Mikania cordata (Burm. f.) B. L. Robinson was isolated by column chromatography and analyzed for the presence of sesquiterpene lactones. The spectral data did not allow full elucidation of the isolated sesquiterpene lactone. The infrared spectrum suggested the presence of an a,-unsaturated y-lactone and a saturated y-lactone; methyl and methylene groups; disubstituted and trisubstituted olefins; terminal methylene, epoxy ring; and ester. The ultraviolet spectrum confirmed the presence of the a,-unsaturated y-lactone. The signals in the nuclear magnetic resonance spectrum using CDC13 as solvent were quite weak and did not give additional information on the structure of the isolated sesquiterpene lactone

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 1983 C4 O53

Document Type

Thesis

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