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Showing 1 to 8 of 8 for “"Photoredox Catalysts"”.
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Synthesis and characterisation of small molecule and macromolecular photoredox catalysts for radical thiol-ene reactions
… aim to improve the reactivity and stability of photoredox catalysts, multinuclear photoredox catalysts were developed. Consequently, bipyridyl monomeric and trimeric ligands functionalised with imine and amine functionalities were synthesised via Schiff base condensation and reductive amination …
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Syntheses and characterization of copper(I) complexes for study of dynamic supramolecular ring-chain equilibria and application as photoredox catalysts
… determined by single-crystal X-ray analysis. The photoredox catalytic activity of these copper (I) complexes was investigated in an atom-transfer radical addition (ATRA) reaction and the results showed fairly efficient activity, with a strong wavelength dependence. In order to better understand …
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THE STUDY OF PYRENEDIONE AS A PHOTOREDOX CATALYST AND A FLUOROMETRIC PROBE FOR VISUAL DETECTION AND QUANTIFICATION OF TRYPTOPHAN
… abilities in excited states make them promising photoredox catalysts, which however, has hardly been investigated yet. This thesis is focused on the development of PYD as an environmently friendly organophotocatalyst for oxygenation and alkylation reactions. Moreover, amination of PYD followed by …
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Part 1: Lanthanum(III) Triflate-Catalyzed Cyclopropanation via Intramolecular Methylene Transfer. Part 2: Reaction Design with Aromatic Ions - Nucleophilic Acyl Substitution and Organophotoredox Catalysts
… discloses the development of aromatic cation photoredox catalysts. Investigations into the relationship between cyclopropenium substitution and ultraviolet/visible light absorption are presented. Cyclopropenium ions are shown to be effective photocatalysts for a variety of photoredox …
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The nickel-catalyzed Mizoroki-Heck reaction : high regioselectivity in Olefin migratory insertion and photoredox-enabled indoline formation
… formula and color illustrations ...] Nickel/photoredox catalysis is used to synthesize indolines in one step from iodoacetanilides and alkenes. Very high regioselectivity for 3-substituted indoline products is obtained for both aliphatic and styrenyl olefins. Mechanistic investigations …
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Novel Photopolymers for Additive Manufacturing
… of replacing traditional photoinitiators with photoredox catalysts, particularly in the visible light range. Thus, enriching the photoresin formulations for the polymer-based 3D printing industry. Chapter 6 details an electrically conductive polyaniline hydrogel fabricated via a …
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Iridium (III) photosensitisers for photoredox catalysed carboxylation reactions of ketimines
… energy to initiate chemical reactions. Photoredox catalysis has piqued great interest in this regard, creating a means for a milder energy source (visible light) to drive chemical reactions and thus revolutionising the field of synthetic radical chemistry and photochemistry. Recently, …
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A Radical Approach to Photochemical Transformations Using Earth-Abundant Metals
… small molecules. Conventional photocatalysis/photoredox heavily relies on noble-metal based, coordinatively-saturated mononuclear photoactive complexes to perform a bimolecular outer-sphere single electron transfer (OSET) process for the generation of open-shell radical species. While …