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1. Selective poly(vinyl ether) upcycling via photooxidative degradation with visible light

   https://doi.org/10.1039/D3SC05613A  

   Langer, Darren L; Oh, Sewon; Stache, Erin E (January 2024, Chemical Science)

   Selective chemical upcycling of poly(isobutyl vinyl ether) was achieved using photooxidative degradation, producing oxidized small molecules that can be tuned depending on a choice of photocatalysts. 

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2. N -Vinyl and N -Aryl Hydroxypyridinium Ions: Charge-Activated Catalysts with Electron-Withdrawing Groups

   https://doi.org/10.1021/acs.joc.0c00498  

   Riegel, George F.; Kass, Steven R. (May 2020, The Journal of Organic Chemistry)
3. Respiratory Vinyl Chloride Reductive Dechlorination to Ethene in TceA-Expressing Dehalococcoides mccartyi

   https://doi.org/10.1021/acs.est.0c07354  

   Yan, Jun; Wang, Jingjing; Villalobos Solis, Manuel I.; Jin, Huijuan; Chourey, Karuna; Li, Xiuying; Yang, Yi; Yin, Yongchao; Hettich, Robert L.; Löffler, Frank E. (April 2021, Environmental Science & Technology)

   null (Ed.)
4. Pd‐Catalyzed Regiodivergent N ⁶ versus C ^vinyl Arylation of 8‐Vinyl Adenine Nucleosides, Sequential Diarylation, Fluorescence Properties, and Computational Evaluations**

   https://doi.org/10.1002/chem.202501477  

   Akula, Hari_K; Ghosh, Goutam; Greer, Alexander; Pradhan, Padmanava; Lakshman, Mahesh_K (July 2025, Chemistry – A European Journal)

   Abstract Palladium‐catalyzed aryl amination and Heck arylation reactions are complementary transformations, generally requiring a suitable catalyst combination and a base. With substrates containing both an amino group and a vinyl moiety, control of C─N versus C─C reactivity can lead to regiodivergent functionalizations. With this focus, reactions of silyl‐protected 8‐vinyl 2'‐deoxyadenosine and adenosine with aryl bromides and iodides have been studied. Pd(OAc)₂, Pd₂(dba)₃, and preformed dichloro[1,1′‐bis(di‐t‐butylphosphino)ferrocene]palladium (II) (Pd‐118) were evaluated as metal sources. Ligands tested were Xantphos, DPEphos, BIPHEP, and DPPF, with Cs₂CO₃and K₃PO₄as bases. In toluene as solvent, the Pd(OAc)₂/Xantphos/Cs₂CO₃combination was uniquely capable of predominantN⁶arylation. Aryl bromides and iodides gave comparable product yields. Replacement of Cs₂CO₃with K₃PO₄redirected arylation from the nitrogen atom to the vinyl carbon atom, and all other catalyst, ligand, and base combinations gave C^vinylarylation as well. Simply switching from Pd(OAc)₂to Pd₂(dba)₃resulted in loss of theN⁶‐selectivity and C^vinylarylation was favored. Based upon these results, using two structurally similar catalytic systems sequential C^vinylandN⁶arylations of the nucleosides were accomplished. Some of the products were converted to other novel nucleoside analogues. Because some compounds were fluorescent, their photophysical properties were assessed experimentally and computationally. 

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5. Divergent silylium catalysis enables facile poly(vinyl chloride) upcycling to poly(ethylene- co -styrene) derivatives

   https://doi.org/10.1039/D2TA08142C  

   Assefa, Mikiyas K.; Fieser, Megan E. (January 2023, Journal of Materials Chemistry A)

   Tandem hydrodechlorination/Friedel–Crafts alkylation of poly(vinyl chloride) (PVC) is achieved using silylium ion catalysts to prepare new styrenic copolymers of polyethylene. In many cases, conversion of PVC was complete within minutes, indicating facile means of PVC functionalization at low catalyst loadings. 

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