CAS: 138526-69-9; 1-Bromo-3,4,5-Trifluorobenzene

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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,双氧水,溴,硝酸,溶剂黄146体系中,用 甲醇,水 用作溶剂,化学反应 35.0H,反应生成3,4,5-三氟溴苯
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:EP-4378929-A1
优先权日:2022-11-29
标题 :Synthesis of aromatic boronic acids
发明人：KISIN-FINFER EINAT; FALLEK REUT
权利人:ADAMA MAKHTESHIM LTD
摘要:The invention relates to a method for the preparation of phenylboronic acids of formula (I), or combinations thereof, key intermediates in the preparation of compounds of interest in the agrochemical industry. The process comprises adding a borate over a Grignard reagent.

专利号:US-10730037-B2
优先权日:2015-12-25
标题:Compound and method for manufacturing organic material
发明人：MIYAZAWA TAKASHI; SAKAGUCHI KEN-ICHI
权利人:TOYO GOSEI CO LTD
摘要:Synthesis of organic compounds that has chirality is an important technique in the fields of pharmaceuticals, agrichemicals, health foods and the like. However, raw materials of a catalyst used for the synthesis of such compounds are expensive, and the synthesis needs many steps, so that it is difficult to reduce the cost. Linking a catalyst center to a polymer chain or a resin through an organic group enables to use the catalyst repeatedly and produce a chiral compound at low cost.

专利号:WO-2024159724-A1
优先权日:2023-02-03
标 题:O-biphenyl oxazoline compound and synthesis method therefor
发明人：ZHU JIANSHE; WANG MINGCHUN; LI QINGYI
权利人:KEYLAB JIANGSU TECH CO LTD
摘要:A synthesis method for an o-biphenyl oxazoline compound. An aryl metal compound as represent by formula II reacts with aryl oxazoline as represented by formula III to generate the o-biphenyl oxazoline compound as represented by formula I. The o-biphenyl oxazoline compound can be used for industrial preparation of o-aminobiphenyl compounds, and used for synthesizing succinate dehydrogenase inhibitor fungicides (IV) such as fluxapyroxad, bixafen, boscalid, and pyraziflumid.

专利号:CN-117430516-A
优先权日:2023-10-16
标 题:An industrialized method for the one-pot synthesis of triflufenac-benzidine intermediates

专利号:CN-106458847-B
优先权日:2014-05-29
标 题:Synthesis of Novel Diamine and Liquid Crystal Aligning Agent Using It

专利号:US-2023063538-A1
优先权日:2019-12-16
标 题:Large scale process
发明人：GRAVELLE LISE; ZETTERBERG FREDRIK; TYRRELL ANDREW; KINNAERT CHRISTINE; WEYMOUTH-WILSON ALEXANDER; CLARKSON ROBERT
权利人:GALECTO BIOTECH AB
摘要:A process for preparing a compound of formula (I)wherein the process is suitable for large scale synthesis. The process includes the consecutive steps of a) reacting a compound of formula IX and a catalyst and optionally adding a base in an organic solvent and optional adding a basic fluoride source agent under suitable conditions to obtain a compound of formula X and b) removing the protective groups of the compound X to obtain the compound formula (I).