n.[化]腙

Moreover,the reaction path,activation energies and equilibrium constance during the tautomerized reaction involving hydrazone form and azo form are obtained. 此外,還計算了醌腙式和偶氮式結(jié)構(gòu)在互變過程中,反應(yīng)路徑、正逆反應(yīng)活化能以及化學平衡常數(shù)。

The tautomeric equilibrium between the azo type and the hydrazone type of these compounds in different solvents and different acidity has also been studied. 對它們在不同溶劑。不同酸堿度溶液中的偶氮式及腙式間互變異構(gòu)平衡進行了研究。

Vanillin 2,4-dinitrophenyl hydrazone was achieved by the condensation of vanillin with 2,4-dinitrophenylhydrazine.The structure of the title compound was characterized by IR,UV and elemental analysis. 利用香草醛和2,4-二硝基苯肼的縮合反應(yīng)合成香草醛縮2,4-二硝基苯腙,利用紅外、紫外光譜和元素分析進行了結(jié)構(gòu)表征。

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. 合成了呋喃甲酰乙酸乙酯異煙酰腙和呋喃甲酰乙酸乙酯N-氧化異煙酰腙。縮合反應(yīng)在乙醇中進行。

This paper, according to the process of double-bonded carbonic acid reduction, the isomerism of hydrazone &alkali reduction, depicts the current polarogram research of double-bonded carbonic acid. 本文從碳氮雙鍵的還原過程、腙的異構(gòu)和希夫堿的還原三個方面概述了碳氮雙鍵的極譜研究現(xiàn)狀.