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Communication | Special issue | Vol 11, No. 1, 1978, pp.359-362
Published online, 1st January, 1970
DOI: 10.3987/S(N)-1978-01-0359
Concerning the Inhibition of Singlet Oxygen Attack on Compounds Containig Urazole Rings

Guy Kretschmer and Leo A. Paquette*

*Evans Chemical Laboratories, The Ohio State University, 120 W. 18th Avenue, Columbus, Ohio 43210, U.S.A.


The urazole ring is shown not to be an efficient quencher of singlet oxygen; however, electrophilic attack by 1O2, on a double bond situated in a urazole-containing molecule may be entirely suppressed or retarded depending upon distance because of the powerful electron-withdrawing inductive effect of this heterocyclic unit.