Journal of Organic Chemistry p. 1246 - 1249 (1980)
Update date:2022-08-05
Topics:
Nelson, John H.
Howells, Peter N.
DeLullo, George C.
Landen, George L.
Henry, Ronald A.
Bis(2,4-pentanedionato)nickel(II) is found to be a mild, efficient, and simple to use catalyst for the Michael additions of β-dicarbonyls.Yields are higher than with traditional strongly basic catalysts, unwanted side reactions are reduced, and workup procedures are greatly simplified.The reactions appear to be quite general as β-diketones, β-keto esters, β-keto amides, and β-diesters are all found to react.A rational mechanism which suggests further research is presented.
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(1979)
