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Picosecond Electron Transfer from Quantum Dots Enables a General and Efficient Aerobic Oxidation of Boronic Acids

Simlandy, Amit Kumar and Bhattacharyya, Biswajit and Pandey, Anshu and Mukherjee, Santanu (2018) Picosecond Electron Transfer from Quantum Dots Enables a General and Efficient Aerobic Oxidation of Boronic Acids. In: ACS CATALYSIS, 8 (6). pp. 5206-5211.

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Official URL: https://dx.doi.org/10.1021/acscatal.8b01078

Abstract

General visible light-mediated aerobic oxidation of boronic acids is unveiled using CdSe nanocrystal quantum dots (QDs) as the photoredox catalyst. This protocol requires mild reaction conditions and low catalyst loading (down to 10 ppm), and tolerates various functional groups. The resulting phenols and aliphatic alcohols are produced in good to high yield with turnover numbers as high as >62000. The reaction mechanism is probed using ultrafast transient absorption and luminescence spectroscopy. The existence of a rapid 350 ps initial electron transfer followed by a hole transfer is demonstrated.

Item Type: Journal Article
Additional Information: Copy right of this article belong to AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
Department/Centre: Division of Chemical Sciences > Organic Chemistry
Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Depositing User: Id for Latest eprints
Date Deposited: 26 Jun 2018 14:20
Last Modified: 26 Jun 2018 14:20
URI: http://eprints.iisc.ac.in/id/eprint/60085

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