The Beckmann rearrangement of a variety of ketoximes has been carried out in imidazolium-based ionic liquids in the presence of catalytic amounts of 2,4,6-trichloro[1,3,5]triazine. This mild and ‘green’ procedure is highly regioselective affording the corresponding N-substituted amides in very good to quantitative yields. The ionic liquids were easily recovered and recycled several times.
Beckmann rearrangement of oximes catalyzed by cyanuric chloride in ionic liquids / C. Betti, D. Landini, A. Maia, M. Pasi. - In: SYNLETT. - ISSN 0936-5214. - :6(2008), pp. 908-910. [10.1055/s-2008-1042804]
Beckmann rearrangement of oximes catalyzed by cyanuric chloride in ionic liquids
C. BettiPrimo
;D. LandiniSecondo
;
2008
Abstract
The Beckmann rearrangement of a variety of ketoximes has been carried out in imidazolium-based ionic liquids in the presence of catalytic amounts of 2,4,6-trichloro[1,3,5]triazine. This mild and ‘green’ procedure is highly regioselective affording the corresponding N-substituted amides in very good to quantitative yields. The ionic liquids were easily recovered and recycled several times.
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