Second Generation of Near‐Infrared Cyanine‐Based Photocatalysts for Faster Organic Transformations
Nicolas Sellet, Leo Clement-Comoy, Mourad Elhabiri, Morgan Cormier, Jean‐Philippe Goddard
Abstract
A second generation of cyanine-based near-infrared photocatalysts has been developed to accelerate organic transformations. Cyanines were prepared and fully characterized prior to evaluation of their photocatalytic activities. Catalyst efficiency was determined by using two model oxidation and reduction reactions. For the aza-Henry reaction, cyanines bearing an amino group on the heptamethine chain led to the best results. For trifluoromethylation, the stability of the photocatalyst was found to be the key parameter for efficient and rapid conversion.
Topics & Concepts
CyaninePhotocatalysisCatalysisPhotochemistryInfraredChemistryCombinatorial chemistryEnergy conversion efficiencyMaterials scienceOrganic chemistryOptoelectronicsPhysicsFluorescenceOpticsQuantum mechanicsSulfur-Based Synthesis TechniquesRadical Photochemical ReactionsAdvanced Photocatalysis Techniques