diazotization

1.METHODS Balsalazide disodium was synthesized by reactions of condensation , reduction, diazotization , coupling and salification from 4-nitrobenzoyl chloride.

方法对硝基甲酰氯起始原料,经缩合、还原、重氮化、偶合、成盐等反应制得巴柳氮二钠。

2.Using 3,3′-dichloro benzidine and acetoacetanilide as raw materials, C.I. pigment yellow 12 was synthesized by diazotization and coupled reaction.

3，3′-二氯联、乙酰乙酰原料，经重氮化、偶合反应合成了C．I．颜料黄12。

3.4. Using 3,3′-dichloro benzidine and acetoacetanilide as raw materials, C. I. pigment yellow 12 was synthesized by diazotization and coupled reaction.

3，3′-二氯联、乙酰乙酰原料，经重氮化、偶合反应合成了C．I．颜料黄12。收藏指正