The tautomeric equilibrium between the azo type and the hydrazone type of these compounds in different solvents and different acidity has also been studied.

对它们在不同剂。不同酸液中的偶氮式及腙式互变异构平衡进行了。

The two now isonicotnic acid hydrazone and N-oxide isonicotinic acid hydrazone of ethyl furoyl acetates were synthesised. The condensations were carried out in ethyl alochol medium.

成了呋喃甲酰乙酸乙酯异烟酰腙和呋喃甲酰乙酸乙酯N-氧化异烟酰腙。缩反应在乙醇中进行。