Photolysis of pyrazolenines having ketonic function
Written by sctunisie no commentsThe photolysis of a C5-ketonic pyrazolenine has enabled us to demonstrate the intermediary of a ketovinylcarbene. This intermediate constitutes a step in competition between stabilization of the carbene and a Wolff rearrangement. Similarly, we have shown that cyclopropenes having a ketonic function on the double bond can be obtained by photolysis of pyrazolenines having an acetyl substituent on C5 position.
A. Khemiss
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