Mechanistic Studies on the Photogenerated Dienol with α-Phenyl-N-tert-Butylnitrones

DOI: 10.1002/jccs.199700037

Source and publish data:

Journal of the Chinese Chemical Society p. 243 - 247 (1997)

Update date:2022-08-29

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Authors:

Pan, Kai

Ho, Tong-Ing

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Article abstract of DOI:10.1002/jccs.199700037

The mechanism for the photochemical reactions of o-methyl-benzaldehyde (1), o-methyl-acetophenone (2) and o-methyl-benzophenone (3) in the presence of α-phenyl-N-tert-butylnitrone (PBN) to the formation of stable nitroxyl radicals 4-6 is studied. The nitroxyl radical product 6 can also be obtained by the thermolysis of benzocyclobutenol with PBN. Thus, the radical products were derived from a novel and regioselective 4+2 cycloaddition of the photogenerated dienol intermediate with PBN.

Full text of DOI:10.1002/jccs.199700037

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