1) 2,4-dichlorobenzaldehyde
2,4-二氯苯甲醛
1.
In this article, 3-chloro-4-methyl aniline is used as initial material, and 2,4-dichlorobenzaldehyde is synthesized through 4 steps of diazotization, sandmeyer reaction, chlorination and hydrolysis.
2,4-二氯苯甲醛是杀菌剂烯唑醇等农药品种的有机中间体。
2.
An analytical method of 2,4-dichlorobenzaldehyde by RP-HPLC has been established.
建立了对2,4-二氯苯甲醛含量进行测定的反相高效液相色谱法。
2) 2,4-Dichloro-5-nitrobenzalehyde
2,4-二氯-5-硝基苯甲醛
3) 2,4-dichlorotoluene
2,4-二氯甲苯
1.
New process of 2,4-dichlorotoluene and analysis on benefit of economic and environment protection;
2,4-二氯甲苯新生产工艺及经济环保效益分析
2.
Some measures were adopted in the synthesis of 2,4-dichlorotoluene, such as slowing the stirring rotation rate of the reactor, improvement of chlorine addition to improve the reaction conditions yield of chlorination reaction, chlorine utilization and selectivity of 2,4-dichlorotoluene significantly.
采用降低反应釜搅拌转速、改进通氯方式、降低反应温度等方法,改善了2,4-二氯甲苯合成的反应条件。
3.
To solve the problem existed in the synthesis process of 2,4-dichlorotoluene, improvement on this process had been made and the optimal process conditions were established in which the reaction temperature (40 ℃) and speed of agitation (30 r/min) were determined and several tubes used to feed chlorine.
针对目前国内2,4-二氯甲苯生产合成工艺中存在的问题,改进了合成工艺,最佳工艺条件为反应温度40℃,转速30r min以及多管道通氯,使氯化收率提高至75%,氯气利用率提高至90%。
4) 2,4-Dimethyl benzaldehyde
2,4-二甲基苯甲醛
5) 2,4-Dichlorobenzoic acid chloride
2,4-二氯苯甲酰氯
6) 1,3-Dichloro-4-(trichloromethyl)benzene
2,4-二氯三氯甲苯
补充资料：2,4-二氯苯甲醛
分子式：C7H4Cl2O
分子量：175.01
CAS号：874-42-0
性质：白色或近白色棱形晶体。熔点74.5℃（72℃），易溶于甲醇、无水乙醇、乙醚和丙酮，不溶于水。
制备方法：在碘或锑存在的条件下，由苯甲醛氯化而得。
用途：作染料中间体。该品在亚硫酸氢钠作用下可制得苯甲醛-2,4-二磺酸[88-39-1]，苯甲醛-2,4-二磺酸是一种染料中间体，用于合成活性深蓝K-FGR及酸性湖蓝A，苯甲醛-2,4-二磺酸也可由甲苯经磺化、氧化而制得。2,4-二氯苯甲醛还用于合成烯唑醇，是一种取代粉锈宁的新型农药。
分子量：175.01
CAS号：874-42-0
性质：白色或近白色棱形晶体。熔点74.5℃（72℃），易溶于甲醇、无水乙醇、乙醚和丙酮，不溶于水。
制备方法：在碘或锑存在的条件下，由苯甲醛氯化而得。
用途：作染料中间体。该品在亚硫酸氢钠作用下可制得苯甲醛-2,4-二磺酸[88-39-1]，苯甲醛-2,4-二磺酸是一种染料中间体，用于合成活性深蓝K-FGR及酸性湖蓝A，苯甲醛-2,4-二磺酸也可由甲苯经磺化、氧化而制得。2,4-二氯苯甲醛还用于合成烯唑醇，是一种取代粉锈宁的新型农药。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条