CAS: 3862-73-5; 2,3,4-Trifluoroaniline

上下游产品

2,3,4-trifluoronitrobenzene 2,4-difluorophenylamine aniline 4-fluoroaniline 2,3,4-trifluorophenol triethylammonium N-(2,3,4-trifluorophenyl)dithi°Carbamate diethyl 3-(2,3,4-trifluoroanilino)-2-pentendioate diethyl 2-((2,3,4-trifluorophenylamino)methylene)malonate

1,2,3-三氯-5-硝基苯置于环丁砜,Potassium Fluoride,亚硝基硫酸,硫酸,苄基三乙基氯化铵,氢气,硝酸,镍体系中,用 甲醇 用作溶剂,化学反应 28.0H,反应生成2,3,4-三氟苯胺
参考文献:一种3,4,5-三氟溴苯的制备方法
标题:一种3,4,5-三氟溴苯的制备方法
摘要:本发明涉及一种3,4,5‑三氟溴苯的制备方法属于化学合成技术领域,解决对氯硝基苯通氯制备3,4‑二氯硝基苯过程中产生的副产物3,4,5‑三氯硝基苯无法被有效利用的问题.所述方法包括:以3,4,5‑三氯硝基苯为原料制备3,4,5‑三氟溴苯.本发明提供的技术方案能够提高原料的利用率和工艺的效率,同时实现了副产品的高价值利用.

专利信息

专利号:US-11040938-B2
优先权日:2016-07-27
标 题 :Continuous flow process for the synthesis of phenylhydrazine salts and substituted phenylhydrazine salts
发明人：MA BING; PAN SHUAI
权利人:SHANGHAI HYBRID—CHEM TECH; SHANGHAI HYBRID CHEM TECH
摘要:The present invention provided a continuous flow process for the synthesis of phenylhydrazine salts and substituted phenylhydrazine salts. Diazotization, reduction, acidic hydrolysis and salifying with acids are innovatively integrated together. Using acidic liquids of aniline or substituted aniline, diazotization reagents, reductants and acids as raw materials, phenylhydrazine derivative salts is obtained through the synthesis process, which is a three-step continuous tandem reaction including diazotization, reduction, acidic hydrolysis and salifying. The described synthesis process is a kind of integrated solutions, which is carried out in an integrated reactor. The feed inlets of the integrated reactor are continuously filled with raw materials. In the integrated reactor, diazotization, reduction, acidic hydrolysis and salifying are carried out continuously and orderly, and phenylhydrazine salts or substituted phenylhydrazine salts is obtained in the outlet of the integrated reactor without interruption. The total reaction time is no more than 20 min.

专利号:EP-0332033-A2
优先权日:1988-03-11
标 题:N-cyclopropyl anilines and their use in processes for the synthesis of 1-cyclopropyl-quinolone-carboxylic acids and their derivatives
发明人：SCHRIEWER MICHAEL DR; PETERSEN UWE DR; GROHE KLAUS DR; KREBS ANDREAS DR
权利人:BAYER AG
摘要:N-Cyclopropylanilines of the formula (IV) in which R<1>, X<1>, X<2>, X<3>, A, Z and R<2> have the meaning given in the description, which are suitable for the preparation of 4-quinolone- 3-carboxylic acids, and processes for the preparation of quinolone- carboxylic acid derivatives using N-cyclopropylanilines.

专利号:US-2019152896-A1
优先权日:2016-07-27
标题 :Continuous Flow Process For the Synthesis of Phenylhydrazine Salts and Substituted Phenylhydrazine Salts

专利号:CN-117486670-B
优先权日:2023-12-29
标题:A kind of synthesis method of 3,4,5-trifluorobromobenzene

专利号:CN-117624046-A
优先权日:2022-08-15
标题 :Synthesis method of ethoxylomefloxacin

专利号:CN-118637975-A
优先权日:2024-08-13
标 题:Synthesis method of 3,4, 5-trifluoro-bromobenzene