Bio-based triacetic acid lactone in the synthesis of azaheterocycles<i>via</i>a ring-opening transformation
作者:Dmitrii L. Obydennov、Asmaa I. El-Tantawy、Vyacheslav Ya. Sosnovskikh
DOI:10.1039/c8nj01044g
日期:——
These polyfunctional compounds have been converted into biologically important pyridone-3-carboxamides (91–99%) with dimethylformamide dimethyl acetal and also react regioselectively with hydrazines and hydroxylamine to form pyrazolyl- (72–96%) and (isoxazolinyl)acetoamides (60–91%). The conversion of TAL into hetarylacetic acid amides can be performed as one-pot reactions without isolation of polycarbonyl