Synthesis of 3-arylazo-1H-pyridazin-4-ones from difluoroboron chelates of 1,3-diketones
作者:I. V. Kravtsov、P. A. Belyakov、S. V. Baranin、V. A. Dorokhov
DOI:10.1007/s11172-007-0243-5
日期:2007.8
A convenient method for the synthesis of 6-R-3-arylazo-1H-pyridazin-4-ones from difluoroboron chelates of acetylacetone and aroylacetones was developed. The method is based on the ability of the methyl group of the chelates to react with two equivalents of a diazonium salt.