The spectrum analysis of adduct,producced via the reaction between the in-termediates and phenyl N-tert-butylnitrone(PBN), showed that a radical reaction anddesulfonation mechanism have been proved.

• 通过中间产物与苯亚甲基叔丁基氮氧化物（PBN）加合物的波谱分析，证实了该反应为自由基反应并遵从脱磺酸基的反应机理。