83-07-8, Name is 4-Aminoantipyrine, molecular formula is C11H13N3O, belongs to pyrazoles-derivatives compound, is a common compound. In a patnet, author is Dar’in, Dmitry, once mentioned the new application about 83-07-8, Recommanded Product: 83-07-8.
Facile One-Pot Access to alpha-Diazo-beta-ketosulfones from Sulfonyl Chlorides and alpha-Haloketones
A convenient one-pot approach to the preparation of alpha-diazo-beta-ketosulfones from sulfonyl chlorides is described. It involves the conversion of the sulfonyl chloride to sodium sulfinate, alkylation of the latter with alpha-haloketones followed by diazo transfer using the ‘sulfonyl-azide-free’ (‘SAFE’) protocol in aqueous medium. The simple and expedient method relies on readily available starting materials and provides facile access to a wide variety of valuable diazo reagents for organic synthesis.
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Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics