CAS: 609-54-1; 2,5-Dimethylbenzenesulfonic Acid

上下游产品

para-xylene 2,5-dimethyl-benzenesulfinic acid 2,5-dimethyl-benzenesulfonic acid-(4-bromo-phenacyl ester) 2-chloro-1,4-dimethyl-benzene 4-bromo-m-xylene 2,5-dibromo-p-xylene

对二甲苯置于硫酸,三氧化硫体系中,化学反应生成 2,5-二甲苯磺酸(二水物)
参考文献:合成粘土在去除 90Sr 方面表现出色
标题:合成粘土在去除 90Sr 方面表现出色
摘要:对来自汉福德场地的实际地下水进行的测试以及对 2Na {sup +}{产量}Sr{sup 2+} 交换平衡的基础研究表明,合成粘土对 {sup 90}Sr 具有极高的选择性,具有很高的吸收能力.与现有 Sr 选择性离子交换剂的比较研究清楚地表明,本合成粘土表现出从汉福德三个不同位置收集的实际地下水中去除 {sup 90}Sr 的最佳性能.这种新型 Sr 离子筛有望用于在意外释放和 {sup 90}Sr 污染后净化环境.(C) 2000 材料研究学会.
DOI:10.1557/jmr.2000.0182

专利信息

专利号:US-9856251-B2
优先权日:2008-09-03
标题:Substituted berbines and processes for their synthesis
发明人：WANG PETER X; MOSER FRANK W; CANTRELL GARY L; GROTE CHRISTOPHER W
权利人:MALLINCKRODT LLC
摘要:The present invention provides processes for the synthesis of substituted berbine compounds. Also provided are intermediates used in the synthesis of substituted berbine compounds.

专利号:US-9181237-B2
优先权日:2013-10-04
标 题 :Substituted berbines and their synthesis
发明人：GROTE CHRISTOPHER W
权利人:MALLINCKRODT LLC
摘要:The present invention provides substituted berbines, processes for the synthesis of substituted berbine compounds, as well as intermediates used in the synthesis of substituted berbine compounds. Also provided are methods for using the substituted berbines to inhibit cancer cell growth.

专利号:US-2011098466-A1
优先权日:2007-08-31
标题:Synthesis Of Triphenodioxazine Pigments
发明人：KEMPTER PETER; STRECK WILHELM
权利人:CLARIANT FINANCE BVI LTD
摘要:The invention relates to a process for the preparation of compounds of the general formula (I) where X are halogen atoms, the rings labeled A are linearly or angularly fused in position 1,2; 2,3 or 3,4, and in position 8,9; 9,10 or 10,11, to a 5- or 6-membered heterocyclic ring containing in the ring one nitrogen atom and one oxygen atom, or containing in the ring two nitrogen atoms, comprising an oxidation of a 3,6-bisarylamino-2,5-dihalobenzoquinone of the formula (II) in an aprotic-polar organic solvent in the presence of an organic sulfonic acid.

专利号:US-4143050-A
优先权日:1977-01-05
标题 :Manufacture of 3-halosulfonylthiophene-carboxylic acid compounds
发明人：ROSSY PHILLIP A; HOFFMANN WERNER; MUELLER NORBERT
权利人:BASF AG
摘要:3-Halosulfonylthiophene-carboxylic acid compounds are manufactured by reacting 3-ketothiophane-carboxylic acid compounds with sulfonic acid compounds, reacting the end product from the 1st reaction stage with alkali metal polysulfides, reacting the end product from the 2nd stage with a dehydrogenating agent and finally reacting the end product from the 3rd stage with halogen and water. The products are starting compounds for the manufacture of drugs, dyes and crop protection agents and have an anti-inflammatory, analgesic and anti-rheumatic action. In particular, the end products I are starting materials for the manufacture of sweeteners which are non-toxic and free from an after-taste, flavor-improving agents, diabetic aids and feedstuffs, and provide the means of a simple and economical synthesis of thiophene-saccharins.

专利号:US-11780802-B2
优先权日:2017-12-05
标题:Organic sulfonic acid salts of amino acid esters and process for their preparation
发明人：EBERT SOPHIA; LUDOLPH BJOERN; MARCZEWSKI DAWID
权利人:BASF SE
摘要:The application relates to a process for the synthesis of organic sulfonic acid salts of amino acid esters comprising the steps of (i) reacting at least one lactam with at least 3 carbon atoms in the lactam ring with at least one organic sulfonic acid in an aqueous solution, (ii) esterification of the organic sulfonic amino acid salt of step (i) with at least one alcohol with at least 8 carbon atoms comprising at least one hydroxyl group, (iii) optionally removal of water and/or removal of excess alcohol of step (ii). The application also relates to organic sulfonic acid salts of amino acid esters of the general formula (I).

专利号:US-12172982-B2
优先权日:2020-08-12
标 题:Synthesis of quinazoline compounds
发明人：LIM NGIAP-KIE; SHEN JEFF; SIROIS LAUREN ELIZABETH; TIMMERMAN JACOB C; TRACHSEL ETIENNE; WHITE NICHOLAS ANDREW; XU JIE; ZHANG HAIMING; BACHMANN STEPHAN; BIGLER RAPHAEL; CLAGG KYLE BRADLEY PASCUAL; DIPASQUALE ANTONIO GIOVANNI; GOSSELIN FRANCIS; ORCEL UGO JONATHAN; MEIER ROLAND CHRISTOPH
权利人:GENENTECH INC; HOFFMANN LA ROCHE
摘要:Provided herein are methods of synthesizing quinazoline compounds comprising at least one atropisomeric center.