Pernitrate esters

The reactions of PAN and other pernitrate esters with organic compounds have not been studied very much. Simple alkenes can be epoxidized by PAN in laboratory experiments (Darnall and Pitts, 1970), but whether this reaction occurs in the environment is unknown. 

Peroxy radicals can also react directly with NO2 to form pernitrate esters ... 

Another possible reaction of peroxy radicals in the atmospheric environment, particularly when nitrogen oxide concentrations are low (as they are in very clean air), is a hydrogen abstraction from HOO to produce a hydroperoxide, ROOH. Since all the above reactions of ROO- have comparable rates, the relative concentrations of HOO and NO species will determine the extent of formation of hydroperoxides, alkoxy radicals, and pernitrate esters (McFarland et al., 1979 Hanst and Gay, 1983). 

In the presence of oxides of nitrogen (especially NO, present in polluted atmospheres), peroxy radicals form pernitrate esters in a two-step process ... 

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