4.3 Article

Synthesis and spin trapping properties of polystyrene supported trifluoromethylated cyclic nitrones

Journal

FREE RADICAL RESEARCH
Volume 53, Issue 11-12, Pages 1084-1100

Publisher

TAYLOR & FRANCIS LTD
DOI: 10.1080/10715762.2019.1683171

Keywords

Fluorinated; free radicals; nitrone; polymer supported; spin trapping

Funding

  1. NSF [DMR-1404550]
  2. NSF CHE [1427922]
  3. NMR [NSF CHE 0342912, NIH S10-RR19918]
  4. Direct For Mathematical & Physical Scien [1427922] Funding Source: National Science Foundation
  5. Division Of Chemistry [1427922] Funding Source: National Science Foundation

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Polystyrene supported fluorinated cyclic nitrone spin-traps: Resin-2-HFDMPO (2-hydroxymethyl-2-methyl-5-(trifluoromethyl)-3,4-dihydro-2H-pyrrole-1-oxide) and Resin-2-PFDMPO (2-(3-hydroxypropyl)-2-methyl-5-(trifluoromethyl)-3,4-dihydro-2H-pyrrole 1-oxide) containing a trifluoromethyl pyrroline-N-oxide core were developed to detect free radicals under flow conditions. A continuous flow EPR technique was used to evaluate the spin trapping properties of these tethered nitrones. While both resins trapped radicals, polymer supported nitrone Resin-2-PFDMPO with a longer and more flexible linker showed a more information rich spectrum than Resin-2-HFDMPO.

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