The spin adducts formed under UVA irradiation or in the presence of mild oxidants in the reaction of a number of heteroaromatic bases and two indolic nitrones have been characterized by means of ESR spectroscopy. The formation of the spin adducts is explained via the Forrester-Hepburn mechanism, while the occurrence of inverted spin trapping is excluded. Photolysis of nitrones 1 and 2 or of the corresponding cyclic hydroxamic acids resulted in the formation of the related acyl nitroxides.
Reactions of indolic nitrones and N-heteroaromatic bases under irradiation and chemical oxidation / Alberti, A.; Astolfi, P.; Dopp, D.; Greci, L.; Macciantelli, D.; Petrucci, R.. - In: NEW JOURNAL OF CHEMISTRY. - ISSN 1144-0546. - STAMPA. - 27:7(2003), pp. 1045-1048. [10.1039/b212663j]
Reactions of indolic nitrones and N-heteroaromatic bases under irradiation and chemical oxidation
Petrucci, R.
2003
Abstract
The spin adducts formed under UVA irradiation or in the presence of mild oxidants in the reaction of a number of heteroaromatic bases and two indolic nitrones have been characterized by means of ESR spectroscopy. The formation of the spin adducts is explained via the Forrester-Hepburn mechanism, while the occurrence of inverted spin trapping is excluded. Photolysis of nitrones 1 and 2 or of the corresponding cyclic hydroxamic acids resulted in the formation of the related acyl nitroxides.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
