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Updated: Aug 18, 2026

Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer
Published on: November 30, 2020
Photochemical relationships in Sacoglossan polypropionates
Daniel R Zuidema1, Paul B Jones
1Department of Chemistry, Wake Forest University, Winston-Salem, North Carolina 27109, USA.
Abstract:
Cyercene A has been synthesized and converted to placidene A and isoplacidene A through photoisomerization with sunlight. Hydroperoxide, isolated form Placida dendritica, was synthesized both by singlet oxygenation of cyercene A using Rose Bengal and through the irradiation of cyercene A alone in aerobic solution. The observation that hydroperoxide could be made by singlet oxygenation of cyercene A and that this occurs when cyercene A alone is irradiated supported the hypothesis that gamma-pyrones may act as triplet sensitizers. This was confirmed using cyercene A and a model gamma-pyrone to sensitize the photooxidation of n-butyl sulfide. The biosynthetic implications of these observations for Sacoglossan polypropionates are discussed.
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