| Autor: |
Jung, Hyun Jin, Park, Sora, Lee, Hyun Sub, Shin, Hyun Gyu, Yoo, Yeji, Baral, Ek Raj, Lee, Jun Hee, Kwak, Jaesung, Kim, Jeung Gon |
| Předmět: |
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| Zdroj: |
ChemSusChem; 10/5/2021, Vol. 14 Issue 19, p4301-4306, 6p |
| Abstrakt: |
Chemical upcycling of poly(bisphenol A carbonate) (PC) was achieved in this study with hydroxamic acid nucleophiles, giving rise to synthetically valuable 1,4,2‐dioxazol‐5‐ones and bisphenol A. Using 1,5,7‐triazabicyclo[4.4.0]‐dec‐5‐ene (TBD), non‐green carbodiimidazole or phosgene carbonylation agents used in conventional dioxazolone synthesis were successfully replaced with PC, and environmentally harmful bisphenol A was simultaneously recovered. Assorted hydroxamic acids exhibited good‐to‐excellent efficiencies and green chemical features, promising broad synthetic application scope. In addition, a green aryl amide synthesis process was developed, involving one‐pot depolymerization from polycarbonate to dioxazolone followed by rhodium‐catalyzed C−H amidation, including gram‐scale examples with used compact discs. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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