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Title: Visible light–driven cascade carbon–carbon bond scission for organic transformations and plastics recycling
Authors: Gazi, Sarifuddin
Đokić, Miloš
Chin, Kek Foo
Ng, Pei Rou
Soo, Han Sen
Keywords: Photocatalysis
Plastics Recycling
Issue Date: 2019
Source: Gazi, S., Đokić, M., Chin, K. F., Ng, P. R., & Soo, H. S. (2019). Visible light–driven cascade carbon–carbon bond scission for organic transformations and plastics recycling. Advanced Science, 1902020-. doi:10.1002/advs.201902020
Series/Report no.: Advanced Science
Abstract: Significant efforts are devoted to developing artificial photosynthetic systems to produce fuels and chemicals in order to cope with the exacerbating energy and environmental crises in the world now. Nonetheless, the large‐scale reactions that are the focus of the artificial photosynthesis community, such as water splitting, are thus far not economically viable, owing to the existing, cheaper alternatives to the gaseous hydrogen and oxygen products. As a potential substitute for water oxidation, here, a unique, visible light–driven oxygenation of carboncarbon bonds for the selective transformation of 32 unactivated alcohols, mediated by a vanadium photocatalyst under ambient, atmospheric conditions is presented. Furthermore, since the initial alcohol products remain as substrates, an unprecedented photodriven cascade carboncarbon bond cleavage of macromolecules can be performed. Accordingly, hydroxyl‐terminated polymers such as polyethylene glycol, its block co‐polymer with polycaprolactone, and even the non‐biodegradable polyethylene can be repurposed into fuels and chemical feedstocks, such as formic acid and methyl formate. Thus, a distinctive approach is presented to integrate the benefits of photoredox catalysis into environmental remediation and artificial photosynthesis.
DOI: 10.1002/advs.201902020
DOI (Related Dataset):
Schools: School of Physical and Mathematical Sciences 
Rights: © 2019 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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