Article ID Journal Published Year Pages File Type
170996 Comptes Rendus Chimie 2011 5 Pages PDF
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.

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Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
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The Swern Oxidation: First example of direct oxidation of 2-pyrazolines with “activated” DMSO
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