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CHEMICAL REACTIONS OF SUPEROXIDE ANION RADICAL IN APROTIC SOLVENTS
Author(s) -
Frimer Aryeh A.,
Rosenthal Ionel
Publication year - 1978
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1978.tb07005.x
Subject(s) - superoxide , chemistry , yield (engineering) , electron paramagnetic resonance , photochemistry , nitrobenzene , electron transfer , superoxide radical , ion , oxygen , medicinal chemistry , organic chemistry , catalysis , materials science , physics , nuclear magnetic resonance , metallurgy , enzyme
— While superoxide anion radical does not normally react with olefins, it does react with activated double bonds. Thus O ‐ 2 oxidatively cleaves certain α,β‐unsaturated ketones such as chalcones and tetracyclone and electron poor olefins such as 1,1‐dicyano and 1,1‐dinitro olefins. Similarly O ‐ 2 can react with substituted nitrobenzenes to yield the corresponding nitrophenols. EPR and oxygen labeling (KO 36 2 ) experiments confirm an electron transfer mechanism.