The master thesis describes photoinduced (light with a wavelength of 365 nm) transformations of boron difluoride-diketonate derivatives. Our goal was to study the scope of transformations and the reaction pathway. We focused on photoinduced reactions of boron difluoride diketonato complexes with a variety of olefins. First, we synthesized the starting complexes from 1,3-diketones. A variety of 1,3-diketones were successfully reacted as starting compounds with boron trifluoride etherate to give the corresponding 1,3-diketonato complexes. Next, we set out to perform De Mayo-type photochemical reactions. The previously synthesized complexes were reacted with a series of olefins, which, as predicted in the literature, should lead to [2+2]-cycloadditions, followed by retro-aldol reactions to furnish 1,5-diketones. We successfully optimized the reaction conditions on the model substrate and applied them to the transformations of the other substrates, which led to the formation of the desired products.
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