Abstract
The addition reactions of acetylacetone and ethyl acetoacetate with diphenylcarbodiimide and dicyclohexylcarbodiimide in the presence of nickel acetylacetonate afforded N,N"-substituted α,α-dioxoketene aminals. Adducts of acetylacetone with carbodiimides are readily deacetylated with MeONa in MeOH to form acetylketene aminals. Ketene aminals were used for the synthesis of functionalized 1,2,3-triazoles.
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Dorokhov, V.A., Komkov, A.V. Addition of acetylacetone and ethyl acetoacetate to carbodiimides promoted by nickel acetylacetonate. Russian Chemical Bulletin 53, 676–680 (2004). https://doi.org/10.1023/B:RUCB.0000035656.94284.ee
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DOI: https://doi.org/10.1023/B:RUCB.0000035656.94284.ee