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The direct photolysis of estrone in solvents ranging from water to cyclohexane is reported. The photodegradation is dominated by lumiestrone, an epimer of estrone resulting from the inversion of the methyl group at carbon 13, regardless of solvent and photolysis wavelength in the range 254-320 nm. Solvent addition products are also observed in lesser amounts. The photodegradation rate in water is an order of magnitude slower than in nonaqueous solvents. Short wavelength excitation enhances photodegradation. Together, these results suggest complicated photophysics underlie the photochemistry with implications for the remediation of environmental estrogens. © 2021 American Society for Photobiology.


Natalie Adriano, Ceilidh Ahearn, Cory Black, Michael Cracchiolo, Daniel Ghere, Alexandra Nuñez, Lars Olivan, Raj Patel, Stephanie Saner, Krista R Smith, Barbie Watkins, Patrick M Hare. Solvent- and Wavelength-Dependent Photolysis of Estrone. Photochemistry and photobiology. 2022 Jul;98(4):783-797

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PMID: 34664279

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