Synthetic Studies of the Derivatives of Nitroacetic Acid. III. The Synthesis of Isoxazole-3,5-dicarboxylic Acids from Schiff Bases and Nitroacetic Ester
作者:Sumio Umezawa、Shonosuke Zen
DOI:10.1246/bcsj.36.1150
日期:1963.9
5-dicarboxylic amides. This is a new synthesis of isoxazole derivatives. 2) Twenty kinds of 4-substituted isoxazole-3,5-dicarboxylic amides, including aliphatic, aromatic and heterocyclic derivatives, have been prepared. 3) Seven of the above-mentioned amides have been hydrolyzed to give the corresponding 4-substituted isoxazole-3,5-dicarboxylic acids. 4) Some Schiff bases have been described.