7-Hydroxy-3-phenoxy-8-formylchromones, analogs of natural flavonoids
作者:T. V. Shokol、O. A. Lozinskii、T. M. Tkachuk、V. P. Khilya
DOI:10.1007/s10600-009-9345-7
日期:2009.5
7-Hydroxy-3-phenoxy-8-formylchromones were synthesized using the Duff reaction and were reacted with 2,4-dinitrophenylhydrazine to produce hydrazones and with an excess of hydrazine hydrate to produce the pyrazole recyclization products. Derivatives of α-pyrono[2,3-f]chromones were synthesized using the Knoevenagel condensation with 2-azahetarylacetonitriles and the Perkin reaction.