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2,6-二氯-4-甲基-3-氰基吡啶与苯胺缩合研究

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在以 2,6-二氯-4-甲基-3-氰基吡啶和苯胺为起始原料,N,N-二甲基甲酰胺(DMF)作溶剂的缩合反应体系中,探究了不同苯胺初始质量分数对反应的影响规律.结果显示,苯胺初始质量分数在 30%~100%范围时,该反应可看作与二氯烟腈转化率(1-α)有关的一级反应,随着DMF含量增加,苯胺初始质量分数降低,反应速率提高,产物收率和纯度提高.
Condensation of 2,6-Dichloro-4-Methyl-3-Cyanopyridine and Aniline
The effect of different initial mass fractions of aniline on the reaction was investigated by a condensation reaction of 3-cyano-2,6-dichloro-4-methylpyridine and aniline with solvent DMF.The results showed that when the initial mass fraction of aniline was in the range of 30%~100%,the reaction could be regarded as a first-order reaction related to the conversion rate of 3-cyano-2,6-dichlo-ro-4-methylpyridine(1-α).As the DMF content increased and the initial mass fraction of aniline decreased,the reaction rate in-creased,the yield and purity of product increased.

3-cyano-2,6-dichloro-4-methylpyridineDMFanilinecondensation reactionfirst-order reaction

陈琪汉、章文刚、阮华林、凌淳锴、王文巍

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浙江闰土股份有限公司, 绍兴 312369

2,6-二氯-4-甲基-3-氰基吡啶 DMF 苯胺 缩合反应 一级反应

2024

染料与染色
沈阳化工研究院有限公司

染料与染色

影响因子:0.273
ISSN:1672-1179
年,卷(期):2024.61(1)
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