Environmental Science and Pollution Research International 2002-01-01

Photochemical behaviour of the systemic fungicide carboxin.

Maria Rosaria Iesce, Flavio Cermola, Fulvio De Lorenzo, Maria Liliana Graziano, Barbara Caliendo

Index: Environ. Sci. Pollut. Res. Int. 9(2) , 107-9, (2002)

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Abstract

Irradiation of carboxin (1) with a 500 W UV lamp (filter Pyrex) in CH3CN leads to the products 3, 5-8, 12-14 depending upon the reaction conditions. All photo-products were isolated and characterized. Photooxidation occurred even if unsensitized, while photoalteration was very slow in the absence of oxygen. The main oxygenated-products 3 and 13 were also recovered under biomimetic conditions by exposure of an aqueous solution of 1 to sunlight.