4.8 Article

Integrated strategy for the synthesis of aromatic building blocks via upcycling of real-life plastic wastes

期刊

CHEM
卷 8, 期 9, 页码 2472-2484

出版社

CELL PRESS
DOI: 10.1016/j.chempr.2022.06.002

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资金

  1. Chinese Scholarship Council [202006870012]
  2. FWO [1S10921N]
  3. Francqui Foundation [42984]

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This study presents an integrated strategy for synthesizing lower aromatics and bioactive compounds from real-life polystyrene-based wastes. Gram-scale transformations of the waste materials were achieved to demonstrate practicality, and detailed mechanistic investigations provided insights into the reaction mechanism and the role of reagents involved.
There is a high demand for aromatic compounds in petrochemical industries as well as in end-user industries. However, current syn-thesis of aromatics is entirely dependent on energy-intensive stra-tegies. At the same time, the rapid growth of plastic wastes in landfills and oceans is alarming. As a solution to both dilemmas, we report here an integrated strategy for the synthesis of lower ar-omatics such as benzene, toluene, biphenyl, and salicylic acid from real-life PS-based wastes. Additionally, four bioactive com-pounds have been synthesized. Advantageously, gram-scale trans-formations of real-life PS-based wastes have been achieved to demonstrate the practicality. Finally, detailed mechanistic investi-gations have revealed the mechanism of this upcycling strategy and clearly demonstrated the role of each reagent involved in this reaction.

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