Development of structure — Activity trends in the series of 3-phenoxychromone derivatives
作者:S. A. Vasil'ev、V. L. Boyarchuk、M. S. Luk'yanchikov、V. P. Khilya
DOI:10.1007/bf00767267
日期:1991.11
e (IIa-o), containing both electron-donor and electron-acceptor substituents in the phenoxyl part of the molecule. These compounds were obtained by the action of phosphorus chloride on the complex of the compound (Ia-o) with boron trifluoride etherate in dimethylformamide. The acylation of the compound (II) with acetic anhydride in the presence of pyridine gave the corresponding acetates (IIl).