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Bioinspired Photocatalyzed Organic Synthetic Transformations. The Use of Natural Pigments and Vitamins in Photocatalysis

Von Wiley-VCH zur Verfügung gestellt

Organophotocatalysis: The use of natural organic pigments, vitamins and small organic molecules with antiviral activity can function as visible light photocatalysts for oxidation, reduction, C−O, C−C, and C−S bond formation reactions, and E/Z isomerizations. The use of these photocatalysts brings about advantages ranging from a lower environmental impact as compared to the use of classical photocatalysts such as organic dyes or transition metal photocatalysts and convenience in large scale syntheses in the pharmaceutical industry. Redox potentials and photophysical properties of bioinspiring catalysts are presented.


Due to the necessity for more environmentally benign processes in synthetic organic chemistry, and in particular in photocatalysis, a recourse to photocatalysts that are also found in nature and mimic natural processes to accomplish organic transformations is very appealing. Synthetic useful reactions such as oxidations, reductions, carbon-oxygen, carbon-carbon and carbon-sulfur bond formation reactions, and E-to-Z geometrical isomerization reactions photocatalyzed by biological natural pigments, vitamins, cofactors, and compounds with antiviral activity will be discussed in this account. Interestingly, due to the remarkable redox properties and triplet energies of some of these catalysts that are found in nature, both electron transfer (ET)- and energy transfer (EnT)-driven photocatalytic processes can be accomplished.

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