CAS: 40932-60-3; 3,5,6-Trichlorosalicylic Acid

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CAS号320-72-9 3,5-二氯水杨酸 | CAS号321-14-2 5-氯代水杨酸 | CAS号7664-93-9 硫酸 | CAS号7782-50-5 氯气 | CAS号4524-78-1 6-溴-2,4,5-三氯苯酚 | CAS号30431-50-6 bis(2-butoxycar... | CAS号30431-53-9 pentyl 3,5,6-tr... | CAS号95-95-4 2,4,5-三氯苯酚 | CAS号58-90-2 砷原子吸收标样 | CAS号30431-54-0 草酸双[2,4,5-三氯-6-...

5-溴水杨酸置于硫酸,碘,氯体系中,化学反应 12.0H,反应生成 3,5,6-三氯水杨酸
参考文献:制备3,6-二氯-2-羟基苯甲酸的新方法,这是合成除草剂麦草畏的倒数第二个中间体
标题:制备3,6-二氯-2-羟基苯甲酸的新方法,这是合成除草剂麦草畏的倒数第二个中间体
摘要:草甘膦[N-(膦酰基甲基)甘氨酸]是一种广谱的芽后除草剂,是全球使用最广泛的农用化学品之一.在过去的30年中,抗草甘膦的杂草得到了发展,这对种植者和农作物科学家构成了巨大的挑战,导致农作物产量降低和成本增加.3,6-二氯-2-甲氧基苯甲酸(麦草畏)是xtendimax®的活性成分,Xtendimax®是拜耳作物科学公司开发的用于控制阔叶杂草(包括抗草甘膦的物种)的独立除草剂.3,6-二氯-2-羟基苯甲酸(3,6-Dcsa)是麦草畏合成中的倒数第二个中间体.现有的麦草畏制造路线利用高温高压kolbe-Schmitt羧化反应制备3,6-Dcsa.这封信中描述的是一种新的非柯尔布-施密特流程,该流程准备3,
DOI:10.1016/j.Tetlet.2019.03.024

专利信息

专利号:US-5194666-A
优先权日:1992-07-30
标 题 :Process for preparing esters of 3,5,6-trichlorosalicyclic acid
发明人：SEDLAK JOHN A; HIGGINS MARK A; ESSENFELD AMY P
权利人:AMERICAN CYANAMID CO
摘要:An improved process for the synthesis of esters of 3,5,6-trichlorosalicylic acid in quantitative yield comprises reacting the acid with an alcohol under distillation conditions in the presence of a titanium ester or chelate catalyst, whereby byproduct ether formation from the alcohol is suppressed. The process is especially applicable to a process by which salicylic acid is chlorinated first in concentrated sulfuric acid and then with iodine catalyst to make the trichlorosalicylic acid which is extracted and then reacted with an alcohol and a titanium catalyst to make the ester.

专利号:US-9217012-B2
优先权日:2009-04-08
标题 :Inhibitors of protein tyrosine phosphatases
发明人：ZHANG ZHONG-YIN; ZHANG SHENG
权利人:ZHANG ZHONG-YIN; ZHANG SHENG; UNIV INDIANA RES & TECH CORP
摘要:Disclosed herein are compounds that selectively inhibit members of the PTP family of enzymes. Synthesized compounds demonstrated selective inhibition of TC-PTP. Also provided are methods of using the compounds and formulations containing the compounds. Also described is a fluorescence-tagged combinatorial library synthesis and screening method. And methods of using these compounds to effect enzyme activity both in cells and in vitro as well as method of using these compounds to treat diseases in human and animals.

专利号:US-4308395-A
优先权日:1980-07-11
标题:Processes for preparing 3,5,6-trichlorosalicylic acid and esters thereof
发明人：MANFRE ROBERT J; MOHAN ARTHUR G; RAUHUT MICHAEL M
权利人:AMERICAN CYANAMID CO
摘要:An improved single-pot process for synthesis of 3,5,6-trichlorosalicylic acid and esters thereof is described. Salicylic acid is chlorinated first in concentrated sulfuric acid and then with iodine catalyst to make the trichlorosalicylic acid which is extracted and then reacted with an alcohol to make the ester.

专利号:CN-110229104-B
优先权日:2019-06-18
标 题 :A method for the synthesis of tetrahydroquinoline compounds catalyzed by titanocene/Brönsted acid from aromatic amines and α-ketoesters

专利号:CN-114853594-A
优先权日:2022-05-20
标 题 :A kind of production and synthesis method of 3,5,6-trichlorosalicylic acid