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Award ID contains: 1955524

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  1. ; ; ; ; (, Photochemistry and Photobiology)
    Abstract The irradiation of β‐enaminones, generated in situ from cyclic 1,3‐diketones and activated alkenes leads to polyheterocyclic skeletons. The photoproduct chemoselectivity depends on the type of cyclic 1,3‐diketones employed viz., 2‐acetylcyclopentanone and 2‐acetylcyclohexanone. The observed chemoselectivity was rationalized based on the Dieckmann‐Kon rule. 
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  2. ; ; ; ; ; ; ; ; (, Angewandte Chemie International Edition)
    Abstract Aryl‐maleimides undergo a novel [2+4]‐photodimerization instead of the expected [2+2]‐photodimerization under both direct irradiation with visible light and under sensitized energy transfer conditions. This new excited state reactivity in aryl‐maleimides is deciphered through photochemical, photophysical, and spectroscopic studies. The stereochemistry of the photodimer depends on the type of non‐bonding interactions prevalent during photodimerization which is in turn dictated by the substituents on the maleimide ring. More importantly, the stereochemistry of the photodimer formed is complementary to the product observed under thermal conditions. 
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  3. ; ; (, Molecules)
    Maleimides serve as crucial components in various synthetic processes and are of significant interest to researchers in bioorganic chemistry and biotechnology. Although thermal reactions involving maleimides have been studied extensively, light-mediated reactions with maleimides remain relatively underutilized. This review focuses on understanding the behavior of maleimides in their excited state, particularly their role as synthetic scaffolds for excited-state reactions. Specific emphasis is placed on the diverse photoreactions involving maleimides and photophysical evaluation from our research group. 
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  4. ; ; ; ; ; (, ACS Catalysis)
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  5. ; ; ; ; ; (, Journal of Photochemistry and Photobiology A: Chemistry)
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  6. ; ; ; ; (, Journal of the American Chemical Society)
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  7. ; ; ; (, Nature Chemistry)
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  8. ; ; ; (, Journal of Photochemistry and Photobiology A: Chemistry)
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  9. ; ; (, Journal of Photochemistry and Photobiology)
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  10. ; ; ; ; ; ; (, Synlett)
    This account highlights the role of restricted bond rotations to influence excited state reactivity of organic molecules. It highlights photochemical reactivity of various organic molecules and the design strategies that could be exploited by chemists to utilize restricted bond rotations to uncover new excited state reactivity and achieve selectivity. 
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