Efficient synthesis of cyclic alpha-alkyl-beta-dicarbonyl compounds of the cyclopentane, cyclohexane, tetronic acid, and alpha-pyrone series from the corresponding cyclic alpha-acyl-beta-dicarbonyl compounds under the action of NaBH3(CN) in a THF-HCl system is described.
An Efficient Synthesis of Alkyl Substituted Cyclic 1,3-Diones
作者:Felix S. Pashkovsky、Igor P. Lokot、Fedor A. Lakhvich
DOI:10.1055/s-2001-16787
日期:——
An efficient method for the synthesis of cyclic α-alkyl β-dicarbonyl compounds of cyclopentane, cyclohexane, tetronic acid and α-pyrone series is described. The method consists of the selective transformation of the corresponding cyclic β,β′-tricarbonyl compounds by NaBH3CN in a mixture of THF and 2N aqueous HCl.