Functionalized 1-anilinoazetidin-2-ones by photochemical ring contraction of pyrazolidinones
- 1 January 1983
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- p. 1111-1117
- https://doi.org/10.1039/p19830001111
Abstract
2-Phenylpyrazolidin-3-ones substituted in the 4-position by a side chain containing hydroxy, amino, or acetamido functional groups undergo photochemical ring contraction to the corresponding 1-anilino-azetidin-2-ones. Retention of stereochemistry during the rearrangement was demonstrated by X-ray crystallographic analysis for the hydroxy-substituted pyrazolidinone.Keywords
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