Interaction of 3-acetoacetyl-2H-chromen-2-one with azanucleophilic reagents
作者:O. A. Grigoryeva、O. V. Fedotova、A. A. Shkel
DOI:10.1007/s10593-011-0700-9
日期:2011.3
The reactions of 3-acetoacetylchromen-2-one with mono-and binucleophilic reagents, under the action of microwave irradiation have been studied. It was shown that depending on the nucleophilicity of the reactant new heterocyclic systems were formed involving the oxo group of the substituent in position 3 of the heterofragment, its opening, or recyclization.
3-(1,3-dioxobutan-1-yl)-2H-chromen-2-one in reactions with electrophilic and nucleophilic reagents
作者:A. A. Shkel’、O. A. Mazhukina、O. V. Fedotova、N. V. Pchelintseva
DOI:10.1134/s1070363214070172
日期:2014.7
Reactions of 3-(1,3-dioxobut-1-yl)-2H-chromen-2-one with electrophilic (boron trifluoride diethyl etherate and phosphorus pentachloride) and nucleophilic (phosphorus pentasulfide and hydrogen sulfide) compounds have been studied. The reactions proceed mainly with the enol form of the substrate which is more stable both in polar and nonpolar solvents. The substrate ability to undergo aromatization into