The Structure of Isopannarin

DOI: 10.1071/CH9831057

Source and publish data:

Australian Journal of Chemistry p. 1057 - 1059 (1983)

Update date:2022-09-26

Topics:

Authors:

Djura, Peter

Sargent, Melvyn V.

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Article abstract of DOI:10.1071/CH9831057

The structure proposed by Yosioka for the product obtained by the treatment of the depsidone pannarin (2-chloro-3-hydroxy-8-methoxy-1,6,9-trimethyl-11-oxo-11H-dibenzo<1,4>dioxepin-4-carbaldehyde) (2) with concentrated sulfuric acid is revised to 5-chloro-6-hydroxy-4'-methoxy-2',4,5'-trimethyl-3,6'-dioxo-2,3-dihydrospiro-7-carbaldehyde (5).

Full text of DOI:10.1071/CH9831057

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