Synthesis and spin trapping properties of polystyrene supported trifluoromethylated cyclic nitrones
作者:Aruna Earla、Eric D. Walter、Rebecca Braslau
DOI:10.1080/10715762.2019.1683171
日期:2019.12.2
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
聚苯乙烯负载的氟化环状硝基旋捕集阱:树脂-2-HFDMPO(2-羟甲基-2-甲基-5-(三氟甲基)-3,4-二氢-2H-吡咯-1-氧化物)和树脂-2-PFDMPO(2-(3-羟丙基)-2-甲基-5-(三氟甲基)-3,4-二氢-2H-吡咯-1-氧化物)含有三氟甲基吡咯啉-N-氧化物核心),用于检测流动条件下的自由基。使用连续流 EPR 技术来评估这些栓系硝基的自旋捕获特性。虽然两种填料都捕获了自由基,但聚合物负载的硝基树脂-2-PFDMPO 具有更长、更灵活的接头,显示出比树脂-2-HFDMPO 信息更丰富的谱图。