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The Swern Oxidation: First example of direct oxidation of 2-pyrazolines with 'activated' DMSO
- Source :
- Comptes Rendus Chimie. 14:997-1001
- Publication Year :
- 2011
- Publisher :
- Elsevier BV, 2011.
-
Abstract
- 1,3-Dipolar cycloaddition of 2-diazopropane to conjugated dienes 1 and α,β-unsaturated ketones 5 is taking place regiospecifically to give cycloadduit 4 and 6 . The reaction of 2-pyrazolines derivatives with dimethylsulfoxide and oxalyl chloride under Swern conditions led to a pyrazolenines 7 and 8 .
Details
- ISSN :
- 16310748
- Volume :
- 14
- Database :
- OpenAIRE
- Journal :
- Comptes Rendus Chimie
- Accession number :
- edsair.doi...........ce2213142117bcd2d30d21d166460f62