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Planta Med 1981; 42(6): 144-154
DOI: 10.1055/s-2007-971618
Research Articles

© Hippokrates Verlag Stuttgart

Neue, lipophile Benzofuranderivate aus Ratanhiawurzel

2. Mitt.: Isolierung und Strukturaufklärung1 E. Stahl, I. Ittel
  • Pharmakognosie und Analytische Phytochemie der Universität des Saarlandes, D-6600 Saarbrücken, Bundesrepublik Deutschland
1 1. Mitt.: Natürliche UV-Filter für Sonnenschutzmittel, EGON STAHL und INGRID ITTEL, Parfümerie + Kosemetik 62, 97 (1981).
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Publication Date:
30 March 2007 (online)

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Abstract

Two phenols have been isolated from the petroleum-ether extract of Ratanhiae radix Ph. Eur.; structure elucidation has been made by means of the following chemico-physical methods: UV, IR, 1H-NMR, 13C-NMR-spectroscopy and mass spectrometry, microhydrogenation and thermofractography. Structures are: 2-(p-methoxy-o-hydroxyphenyl) -5-propenyl (trans)-benzofurane; 2-(p-hydroxyphenyl)-3-methyl-5-propenyl-(trans)-benzofurane. Both compounds - newly discovered in Ratanhiae radix - proved to be effective UV-light filters. They could be useful in sun protection preparations.

Key Word Index

Krameria triandra - Krameriaceae, Rhatany Root - Benzofurane Derivatives - UV-B-Filter Substance - Sun-Protection