Photoinduced Electron Transfer Reaction of 3,3-Dimethyl-3H-pyrazoles: The Formation of Solvent Adducts through Cyclopropene Derivatives

3,3-Dimethyl-3H-pyrazoles were photolyzed, and in the presence of 2,4,6-triphenylpyrylium tetrafluoroborate (TPP+) as a sensitizer in acetonitrile; in addition to cyclopropenes, 2H-pyrroles were obtained as solvent adducts to 1,3-radical cation intermediate.

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Bibliographic Details
Published in:Chemistry letters 1997-01, Vol.26 (10), p.1005-1006
Main Authors: Miyagawa, Nobukazu, Karatsu, Takashi, Kitamura, Akihide
Format: Article
Language:English
Online Access:Get full text
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Summary:3,3-Dimethyl-3H-pyrazoles were photolyzed, and in the presence of 2,4,6-triphenylpyrylium tetrafluoroborate (TPP+) as a sensitizer in acetonitrile; in addition to cyclopropenes, 2H-pyrroles were obtained as solvent adducts to 1,3-radical cation intermediate.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.1997.1005