The reactions of aroylacetonitriles with the nickel chelate of ethyl acetoacetate afforded new block heterocyclic reagents, viz., 3-acetyl-4-amino-6-arylpyran-2-ones. The reactions of the latter with diethyl oxalate gave rise to ethyl 7-aryl-4,5(1H,5H) -dioxopyrano [4,3 -b] pyridine-2-carboxylates.
Selective Formation of Propargylsilanes and Allenylsilanes and Their Reactions with Aldehydes for the Preparation of Homopropargylic and Allenic Alcohols
Application of Nickel Complexes with 1,3-Dicarbonyl Compounds for Synthesis of Fused 4-Aminopyridine-Based Systems
作者:R. N. Vydzhak、S. Ya. Panchishin、V. S. Brovarets
DOI:10.1134/s1070363220080101
日期:2020.8
A potential of using nickel complexes with 1,3-dicarbonyl compounds for the transformation of heterocyclic aminonitriles into fused systems with a 4-aminopyridine core was evaluated. A possibility of introducing acidophobic groups into the molecules of fused compounds was shown.