Hydroxyalkyl peroxy radical

In the presence of NO, the P-hydroxyalkyl peroxy radical reacts with NO to form either the P-hydroxylalkoxy radical plus N02 or the P-hydroxynitrate 8... 

Rate constants for the reactions of P-hydroxyalkyl peroxy radicals with NO are essentially identical to those for the reaction of NO with > C2 alkyl peroxy radicals formed from alkanes. 

Percent product distribution butanone 80.8 1.46, 2-hydroxy-2-methyl-butanal 4.6 0.1, l,2-dihydroxy-2-methyl-butane 14.3 0.3. The addition of OH at the double bond of 2-methyl-1-butene occurs to 10.5 % at the inner and to 89.5 % at the outer position. This results mainly in the formation of a tertiary hydroxyalkyl peroxy radical, which carries no abstractable hydrogen at the... 

Under relatively low NOx conditions in the atmosphere, a part of alkyl peroxy radicals, and hydroxyalkyl peroxy radicals react with HO2 to give hydroperoxy butane (pathways (f), (k)), and hydroxyhydroperoxy butane (pathway (q)). Thus, in oxidation reactions of alkane in the atmosphere, hydroperoxides, hydoxyhydor-peroxides, and hydroxyalkyl nitrate, could also be produced in addition to the normal aldehydes, ketones and alkyl nitrates. 

In aqueous solution [85], fe(02 + Oi ) = 1.5 X 1071 mole"1 s"1. Therefore, in the presence of a base, when all peroxy radicals readily convert to Oi, chain oxidation stops. The dependence of the oxidation rate on pH is shown in Fig. 4. Addition of H202 does not change the rate of oxidation. This may be explained by the decomposition of hydroxyalkyl radicals to ketone and H02 in the presence of bases (see Sect. 2.1). 

---