5. Photochemical Generation of Radical Ions
- Angelo Albini and
- Maurizio Fagnoni
Published Online: 12 JUL 2013
Copyright © 2013 by John Wiley & Sons, Inc. All rights reserved.
Photochemically-Generated Intermediates In Synthesis
How to Cite
Albini, A. and Fagnoni, M. (eds) (2013) Photochemical Generation of Radical Ions, in Photochemically-Generated Intermediates In Synthesis, John Wiley & Sons, Inc., Hoboken, New Jersey. doi: 10.1002/9781118689202.ch05
PhotoGreen Lab, Department of Chemistry, University of Pavia, Pavia, Italy
- Published Online: 12 JUL 2013
- Published Print: 23 AUG 2013
Print ISBN: 9780470915349
Online ISBN: 9781118689202
- photochemical generation;
- radical ions;
From the point of view of the end result, the photochemical reactions via radical ions can be classified as substitution, addition (addition to alkenes, alkynes, carbonyls, imine, and iminium salts), or cycloaddition. Furthermore, (cyclo)addition reactions via an excited donor—acceptor complex (exciplex), rather than via a radical ion pair, have often been observed with the same or closely related reagents. Aryl tetrahydroisoquinolines are a convenient substrate for the photochemical generation of azomethine ylides and, in turn, a useful intermediate for the construction of five-membered ring by a dipolar cycloaddition reaction. The chapter also talks about fragmentation and oxidation of the radical ions.