Measurement by Benzoate Radiolytic Decarboxylation of Relative Rate Constants for Hydroxyl Radical Reactions

Iron cycling during the autocatalytic decomposition of benzoic acid derivatives by Fenton-like and photo-Fenton techniques

“…Moreover, in the presence of both activating and deactivating groups, the effect of activating groups prevails [48]. On the other hand, it is important to note that the electrophilic attack of HO • on the carbon bearing the nitro group is rather difficult [2,49], whereas the carboxyl group is much more labile and HO • attack on benzoic acid derivatives may yield decarboxylated products [50][51][52]. Therefore, for the studied HBAs, the HO • addition is mainly governed by the directing effect of OH substituents and may occur either on the carbon bearing the carboxyl group (with the corresponding release of CO 2 ) or on a non substituted position (Scheme S1, ESI).…”

Modulation of Experimental Phacoanaphylactic Endophthalmitis with the Antioxidants Sodium Benzoate, and 2,3-Dihydroxybenzoic Acid

“…Benzoate is just one of a variety of sub stituents at position X that produce absorp tion spectra similar to that of the hydroxycyclohexadienyl radical [19][20][21][22], The absorp tion spectra of the intermediate species in these reactions resemble closely those of the carbonium ion formed in typical electro philic aromatic substitution reactions [ 18]. A reasonably good correlation using Ham mett's op relationship for electrophilic sub stitution was obtained by competition meth ods for reactions between substituted ben zenes and hydroxyl radicals [23][24][25].…”

Lebensmittelchemie

“…Gesamtnahrung von 1963-1986. (Quelle: Diehl et al 1986) 196119651969197319771981198519891993 Strontium 90 Beim …”