Synthesis of N-unsubstituted ketene aminals from ?-ketocarboxylic esters and cyanamide
摘要:
The interaction of cyanamide with beta-ketocarboxylic esters in the presence of Ni(acac)(2) affords N-unsubstituted aminals of acyl(alkoxycarbonyl)ketenes.
New approach to the synthesis of ketenaminals by the addition of β-diketones and β-ketoesters to monosubstituted cyanamides catalyzed by nickel acetylacetonate