Ionone derivatives from Alternanthera sessilis

College

College of Science

Department/Unit

Chemistry

Document Type

Article

Source Title

Journal of Asian Natural Products Research

Volume

4

Issue

2

First Page

109

Last Page

115

Publication Date

6-1-2002

Abstract

The chloroform extract of the air-dried leaves of Alternanthera sessilis afforded a mixture of diastereomers of a new ionone derivative 1 whose structures were elucidated by extensive 1D and 2D NMR spectroscopy and mass spectrometry. Oxidative cleavage of 1 to aldehyde 3 with manganese dioxide confirmed diastereoisomerism arose from a racemic side chain chiral centre. Antimicrobial tests on the mixture of diastereomers and the derivative indicated that they have low activities against Pseudomonas aeruginosa and Trichophyton mentagrophytes.

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Digitial Object Identifier (DOI)

10.1080/10286020290027380

Disciplines

Chemistry

Keywords

Alternanthera--Analysis; Ionones; Amaranthaceae; Microbial sensitivity tests

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