| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5217790 | Tetrahedron | 2014 | 6 Pages |
Abstract
The 1,3-dipolar cycloaddition of diazomethylsulfone anion, generated in situ from α-diazo-β-ketosulfone, with vinyl sulfone proceeds in a regioselective manner to provide sulfonylpyrazoles. Similar reaction of diazomethylphosphonate anion, derived from Bestmann-Ohira reagent, with vinyl sulfone leads to phosphonylpyrazoles. The sulfonyl group of vinyl sulfone undergoes chemoselective elimination in these reactions.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Rahul Kumar, Deepa Nair, Irishi N.N. Namboothiri,