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Issue 16, 2002
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Synthetic transformation of hydroxymatairesinol from Norway spruce (Picea abies) to 7-hydroxysecoisolariciresinol, (+)-lariciresinol and (+)-cyclolariciresinol

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Abstract

We have developed a method for the transformation of hydroxymatairesinol to optically pure (+)-lariciresinol and (+)-cyclolariciresinol via the hitherto unreported lignan 7-hydroxysecoisolariciresinol. The two naturally occurring isomers of hydroxymatairesinol were reduced with LiAlH4 to a mixture of two epimers of 7-hydroxysecoisolariciresinol, which were further selectively transformed to (+)-lariciresinol and (+)-cyclolariciresinol by an acid catalysed intramolecular cyclisation reaction. The structure of the major isomer of 7-hydroxysecoisolariciresinol was confirmed by X-ray crystallography and thereby also the absolute configurations of the two isomers of hydroxymatairesinol were unambiguously proven. Optical purities were determined by chiral HPLC-MS/MS and optical rotation measurements.

Graphical abstract: Synthetic transformation of hydroxymatairesinol from Norway spruce (Picea abies) to 7-hydroxysecoisolariciresinol, (+)-lariciresinol and (+)-cyclolariciresinol

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Article information


Submitted
11 Mar 2002
Accepted
12 Jun 2002
First published
11 Jul 2002

J. Chem. Soc., Perkin Trans. 1, 2002, 1906-1910
Article type
Paper

Synthetic transformation of hydroxymatairesinol from Norway spruce (Picea abies) to 7-hydroxysecoisolariciresinol, (+)-lariciresinol and (+)-cyclolariciresinol

P. Eklund, R. Sillanpää and R. Sjöholm, J. Chem. Soc., Perkin Trans. 1, 2002, 1906
DOI: 10.1039/B202493D

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