Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - ESR spin-trap study of the radicals present during the thermolysis of some novel alkyl peroxy esters.
AU - Mekarbane, Pierre G.
AU - Tabner, Brian J.
PY - 2000/10
Y1 - 2000/10
N2 - The thermolysis of four alkylperoxy esters was undertaken at various temperatures between 300 and 353 K and the radicals generated were trapped employing DMPO, DEPMPO, PBN-d14 and TTBNB. The adducts of a range of second-generation carbon-centred radicals, formed via decarboxylation of the acyloxyl moiety, including those of the 2,4,4-trimethylpentyl and hept-3-yl radicals, were also observed. The co-generated tert-alkoxyl radicals, released during the thermolysis of tert-butylperoxy-3,3,5-trimethylhexanoate, tert-amylperoxy-2-ethylhexanoate and the bifunctional peroxide 2,5-dimethyl-2,5-bis(2-ethylhexanoylperoxy)hexane, were all successfully trapped, as were a range of second-generation carbon-centred radicals formed following -scission of these tert-alkoxyl radicals.
AB - The thermolysis of four alkylperoxy esters was undertaken at various temperatures between 300 and 353 K and the radicals generated were trapped employing DMPO, DEPMPO, PBN-d14 and TTBNB. The adducts of a range of second-generation carbon-centred radicals, formed via decarboxylation of the acyloxyl moiety, including those of the 2,4,4-trimethylpentyl and hept-3-yl radicals, were also observed. The co-generated tert-alkoxyl radicals, released during the thermolysis of tert-butylperoxy-3,3,5-trimethylhexanoate, tert-amylperoxy-2-ethylhexanoate and the bifunctional peroxide 2,5-dimethyl-2,5-bis(2-ethylhexanoylperoxy)hexane, were all successfully trapped, as were a range of second-generation carbon-centred radicals formed following -scission of these tert-alkoxyl radicals.
KW - ESR spectroscopy
KW - radicals
KW - reaction mechanisms
KW - peroxides
KW - spin-trap
U2 - 10.1002/1097-458X(200010)38:10<845::AID-MRC746>3.0.CO;2-V
DO - 10.1002/1097-458X(200010)38:10<845::AID-MRC746>3.0.CO;2-V
M3 - Journal article
VL - 38
SP - 845
EP - 852
JO - Magnetic Resonance in Chemistry
JF - Magnetic Resonance in Chemistry
SN - 0749-1581
IS - 10
ER -