The photochemistry of citral |
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| Authors: | R. C. Cookson J. Hudec S. A. Knight B. R. D. Whitear |
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| Affiliation: | Chemistry Department, The University of Southampton, Southampton U.K. |
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| Abstract: | Citral (I) is cyclized by UV irradiation1 to 2-isopropenyl-5-methylcyclopentane-carboxaldehyde (II), containing the carbon skeleton of the monoterpenes of ants and catmint. 1,6,6-Trimethylbicyclo[2,1,1]hexane-2-carboxaldehyde (XII, R = H), produced in lesser amount at the same time, was synthesized from camphor. The two photocitrals may, perhaps, come from a common intermediate containing the cyclopentane ring. |
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