[Alkaline Cleavage of Polymeric Phenols from Sargassum muticum and Pelvetia canaliculata].
Low-molecular phenolic cleavage products as well as dibenzofurans are obtained by treatment of polymeric polyphenols from SARGASSUM MUTICUM and PELVETIA CANALICULATA (brown algae) with hot aqueous alkali. Similar degradation products were observed in the analogous treatment of model substances (1). Statements about certain structure elements of polymeric material can now be made from rules derived at that time. The polyphenol fraction from S. MUTICUM seems to contain only phlorotannins of the fuhalol type and those from P. CANALICULATA, in addition to a large portion of non-cleavable substances, several compounds of the fucophlorethol type.
Wölwer-Rieck
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Institut für Pharmazeutische Biologie, Universität Bonn, Nussallee 6, D-5300 Bonn 1, Federal Republic of Germany.
Glombitza
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KW