Nanorod Photocatalysts for C−O Cross-Coupling Reactions

Kaituo Dong, Cristofer Pezzetta, Qiu Cheng Chen, Alexander Kaushansky, Amedeo Agosti, Giacomo Bergamini, Robert Davidson, Lilac Amirav

פרסום מחקרי: פרסום בכתב עתמאמרביקורת עמיתים

תקציר

Carbon-heteroatom cross-coupling reactions are significant for numerous industrial chemical processes, in particular for the synthesis of pharmaceuticals, agrochemicals, and biologically active compounds. Photocatalyst/transition metal dual catalytic systems pave a new avenue for organic cross-coupling reactions. Specifically, the use of semiconductor nanoparticles as heterogeneous light sensitizers is highly beneficial for industrial-scale applications owing to their low-cost production, tunable photophysical properties, facile separation, high photostability, and recyclability. Here, CdSe@CdS nanorod photocatalysts are combined with a Ni complex catalyst for the promotion of selective light-induced C−O cross-coupling reactions between aryl halides and alkyl carboxylic acids. This efficient dual photocatalytic system displays a high yield (∼96 %), with an impressive turnover number (TON) of over 3×106, and within a relatively short reaction time as a result of high turnover frequency (TOF) of ∼56 s−1. In addition, the nanorod photocatalysts harness light with improved solar to product efficiency compared to alternative systems, signaling towards potential solar-powered chemistry. A reaction mechanism involving energy transfer from the nanorods to the Ni complex is proposed and discussed, along with specific benefits of the seeded rod morphology.

שפה מקוריתאנגלית
מספר המאמרe202200477
כתב עתChemCatChem
כרך14
מספר גיליון15
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - 8 מאי 2022

ASJC Scopus subject areas

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