The N-Cyclopropylimine-1-pyrroline Photorearrangement as a Synthetic Tool: Scope and Limitations
- Soldevilla, A. 1
- Sampedro, D. 1
- Campos, P.J. 1
- Rodríguez, M.A. 1
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1
Universidad de La Rioja
info
ISSN: 0022-3263
Year of publication: 2005
Volume: 70
Issue: 17
Pages: 6976-6979
Type: Article
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Abstract
The scope and limitations of the photorearrangement of N-cyclopropylimines to 1-pyrrolines are presented. The influence on the reactivity of different substituents throughout the cyclopropane ring and at the iminic position of the N-cyclopropylimine structure is discussed. The observed effects are interpreted from computational studies. The principal findings relate to (1) the enhanced reactivity of 1-substituted compounds toward rearrangement, (2) the lack of reactivity of crowded cyclopropanes, and (3) the high chemoselectivity of the process. © 2005 American Chemical Society.