CAS: 20925-85-3; 2,3,4,5,6-Pentachlorobenzonitrile

上下游产品

CAS号527-20-8 五氯苯胺 | CAS号544-92-3 氰化亚铜 | CAS号100-47-0 苯甲腈 | CAS号5216-17-1 2,3,5,6-四氟苯腈 | CAS号14796-04-4 Benzonitrile,4,... | CAS号455-32-3 苯甲酰氟 | CAS号773-82-0 2,3,4,5,6-五氟苯腈 | CAS号20925-31-9 2,3,5,6-四氟异硫氰酸苯酯 | CAS号19161-30-9 2,3,5,6-tetrafl... | CAS号652-34-6 2,3,5,6-四氟-4-羟基苯甲酸 | CAS号5360-81-6 3-氯-2,4,5,6-四氟苯甲酸 | CAS号31881-89-7 3,4-dichlorotet... | CAS号602-94-8 五氟苯甲酸

苯甲腈置于氯,甲烷体系中,用99.6%的收率获得五氯苯甲腈
参考文献:一种高纯度五氯苯腈的生产方法
标题:一种高纯度五氯苯腈的生产方法
摘要:本发明涉及一种高纯度五氯苯腈的生产方法,所述生产方法包括以下步骤:A,氧化石墨烯的制备;B,改性活性炭催化剂的制备;C,改性活性炭催化剂的活化;D,苯甲腈的预汽化;E,氯化反应;F,捕集.本发明通过对催化剂进行优化选择,以及对催化剂进行改性并对改性活性炭催化剂进行充分的活化:同时还采用改进的复合床工艺;本发明通过上述催化剂和生产工艺的改进,大大的降低了氯化反应所需的温度,提高了产品的含量(>=99.6%),催化剂的使用寿命延长至720H.

专利信息

专利号:US-10745342-B2
优先权日:2018-07-05
标 题 :Synthesis method of 2,4,6-trifluorobenzylamine
发明人：YUAN QILIANG; QIAN JIE; LAI XIN; CHEN HAIFENG; CHEN YINHAO; WANG CHAO
权利人:ZHEJIANG ZHONGXIN FLUORIDE MAT CO LTD; SHAOXING ZHONGKE BAIYUN CHEMICAL TECH CO LTD
摘要:The disclosure provides a synthesis method of 2,4,6-trifluorobenzylamine, belonging to the technical field of chemical synthesis. The synthesis method is characterized by comprising the following steps: (1) allowing pentachlorobenzonitrile as a raw material to undergo fluoridation reaction with a fluoridation agent based on 2,4,6-trifluoro-3,5-dichlorobenzonitrile as a solvent to obtain 2,4,6-trifluoro-3,5-dichlorobenzonitrile; (2) hydrogenating the obtained 2,4,6-trifluoro-3,5-dichlorobenzonitrile with hydrogen in the presence of organic carboxylic acid, based, on palladium carbon as a catalyst to obtain 2,4,6-trifluoro-3,5-dichlorobenzylamine; and (3) hydrogenating the obtained 2,4,6-trifluoro-3,5-dichlorobenzylamine with hydrogen in a solvent in the presence of a catalyst to obtain 2,4,6-trifluorobenzylamine. The synthesis method has the advantages of low raw material cost, short reaction steps, high reaction yield, good product purity simple operation and the like, and is suitable for industrial production.

专利号:RU-2084437-C1
优先权日:1995-05-24
标 题:Method of synthesis of hexafluorobenzene or its mono- or disubstituted derivatives

专利号:RU-2135453-C1
优先权日:1996-02-07
标题:Method of synthesis of hexafluorobenzene and its mono- and disubstituted derivatives

专利号:US-2020207702-A1
优先权日:2018-07-05
标 题:Synthesis method of 2,4,6-trifluorobenzylamine

专利号:CN-119409566-A
优先权日:2024-10-30
标题:Synthesis method of p-fluorobenzoic acid

专利号:CN-108409603-B
优先权日:2018-02-27
标 题 :Synthesis method of pentafluorobenzonitrile