Add time:08/13/2019         Source:sciencedirect.com

Geranyl acetate (1) was oxidized thermally and photochemically using (mcpba, H2O2) respectively to obtain (E)-5-(3, 3-dimethyloxiran-2-yl)-3-methylpent-2-enyl acetate (2) and 3-(2-(3, 3-dimethyloxiran-2-yl) ethyl)-3-methyloxiran-2-yl) methyl acetate (3). On the other hand, photooxygenation of 1 with tetraphenyl porphin (TPP) as a photo sensitizer gave corresponding acitic acid 2,6-bis-hydroperoxy-7-methyl-3-methylene-oct-7-enyl-ester (4), acitic acid 7-hydroperoxy-3,7-dimethyl-octa-2,5-dienyl ester (5) and Acitic acid 3-hydroperoxy-7-methyl-3,7-dimethyl-octa-1,6-dienyl ester (6). Antifungal studies were carried out on geranyl acetate and its derivatives. Studies on the antifungal activity especially Microsporum gypsum, Trichophyton vercossum and Candida tropicalis showed that geranyl acetate, its epoxide and hydroperoxide derivatives have good antifungal action.

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