Substitution effects on the aza-di-π-methane rearrangement of imines
- 1 January 1987
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 2
- No. 8,p. 1039-1042
- https://doi.org/10.1039/p29870001039
Abstract
The u.v. irradiation of several 1-aryl derivatives of 3,3-dimethyl-5,5-diphenyl-1-azapenta-1,4-diene has been carried out. All of them undergo the aza-di-π-methane rearrangement and yield a cyclopropylimine. The influence of substituents on the 1-aryl group has given support for the proposal that imines with a low ionization potential are less efficient at undergoing the aza-di-π-methane process than are imines with a higher ionization potential. This was demonstrated in a quantitative fashion. The involvement of an electron-transfer process in the reaction is discussed.Keywords
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