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Pure Appl. Chem., 2007, Vol. 79, No. 11, pp. 1939-1947

Green photochemistry: Production of fine chemicals with sunlight

Michael Oelgemöller1, Christian Jung2 and Jochen Mattay3

1 School of Chemical Sciences and National Institute for Cellular Biotechnology, Dublin City University, Dublin 9, Ireland
2 German Aerospace Center (DLR), Solarforschung, Linder Höhe, D-51147 Cologne, Germany
3 Organic Chemistry I, Department of Chemistry, University of Bielefeld, P.O. Box 10 01 31, D-33501 Bielefeld, Germany

Abstract: Three photochemical reactions were investigated under solar irradiation conditions with moderately concentrated sunlight: the photoacylation of naphthoquinone with butyraldehyde and the dye-sensitized photooxygenations of citronellol and 1,5-dihydroxynaphthalene, respectively. All reactions were easily performed on multigram-to-kilogram scales using cheap and commercially available starting materials, and yielded important key intermediates for industrial applications.