34362-24-8 = 82-73-5 反应条件:1.1 Reagents: Chloro(1-Methylethyl)Magnesium Solvents: Tetrahydrofuran; Rt -> -40 °C; 2 H,-40 °C1.2 1 H,-40 °C 标题:Regioselective Halogen-Metal Exchange Reaction Of 3-Substituted 1,2-Dibromo Arenes: The Synthesis Of 2-Substituted 5-Bromobenzoic Acids 作者:Menzel,Karsten; Et Al 参考文献:Synlett 日期:2006 卷标:(12) 页码:1948-1952]
= 82-73-5 反应条件:1.1 Reagents: Potassium Hydroxide,Permanganic Acid (Hmno4),Potassium Salt (1:1) Solvents: Water; 32 H,Reflux2.1 Reagents: Acetic Anhydride; 2 H,Reflux 标题:Enhanced Fluorescence Of Phthalimide Compounds Induced By The Incorporation Of Electron-Donating Alicyclic Amino Groups 作者:Orita,Ryoji; Et Al 参考文献:Physical Chemistry Chemical Physics 日期:2018 卷标:20(23) 页码:16033-16044]
= 82-73-5 反应条件:1.1 Reagents: Permanganic Acid (Hmno4),Potassium Salt (1:1) Catalysts: Hexadecyltrimethylammonium Bromide Solvents: Water; 4 D,60 °C1.2 Reagents: Hydrochloric Acid Solvents: Water; Ph 1,0 °C2.1 Reagents: Acetic Anhydride Solvents: Acetic Anhydride; 1 H,Reflux; Cooled 标题:Synthesis And Biological Activity Of N-Butylphthalide Derivatives 作者:Wang,Wei; Et Al 参考文献:European Journal Of Medicinal Chemistry 日期:2010 卷标:45(5) 页码:1941-1946]
= 82-73-5 反应条件:1.1 Reagents: Triphenylphosphine,Bromine2.1 Reagents: Permanganic Acid (Hmno4),Potassium Salt (1:1)3.1 Reagents: Acetic Anhydride 标题:The Regioselectivity Of Metal Hydride Reductions Of 3-Substituted Phthalic Anhydrides 作者:Soucy,C.; Et Al 参考文献:Journal Of Organic Chemistry 日期:1987 卷标:52(1) 页码:129-34
3-Bromo-2-Isobutoxycarbonylbenzoic Acid置于盐酸,乙酸酐体系中,用 Sodium Hydroxide,甲苯 作为反应溶剂,化学反应生成 3-溴代苯酐 参考文献:Condensed Pyridazinyl Guanidines,Their Production And Use 标题:Condensed Pyridazinyl Guanidines,Their Production And Use 摘要:吡啶并嗪基胍类化合物,其通式为:其中环a为苯环或含氮的6元芳香环,每个环均可被取代;r1为可被取代的芳香环基团,或其盐,具有抑制na-H交换的活性,可作为预防/治疗缺血性心血管疾病如心肌梗死和心律失常的药物.
专利号:US-9670305-B2 优先权日:2012-04-16 标 题 :Polyurethane dispersant and the method for its preparation 发明人:WANG ZHIJUN 权利人:WANG ZHIJUN; AFCONA CHEMICALS (HAIMEN) CO LTD 摘要:The present invention is related to a polyurethane dispersant and a preparation method thereof. The polyurethane dispersant is terminated by a nitrogen-containing heterocyclic compound during synthesis. The nitrogen-containing heterocyclic compound is prepared by subjecting anhydride and a compound containing a primary amine and a secondary amine or a hydroxyl or mercapto group to dehydration condensation. The condensed product is the nitrogen-containing heterocyclic compound, containing a reactive hydrogen. The structural formula of the compound containing the primary amine and the secondary amine or hydroxyl or mercapto group is shown as follows: n nwherein n=1 to 5, and preferably 2 to 4, R 1 and R 2 are respectively alkyls containing 1 to 8 carbons, R 1 and R 2 are independent of each other or connected by a chemical bond to form one or more saturated or unsaturated 4-member to 8-member rings, and X represents N, O, or S.
专利号:CN-115894415-A 优先权日:2022-11-29 标 题 :Synthesis method of dianhydride monomer
参考文献:10.1007/s10118-025-3280-3 摘要:Niu M, Hu C, Pang X, Chen X. 4-Bromophthalic Anhydride-based Polyesters as a Versatile Modified Platform. Chin J Polym Sci. 2025 Feb 24;43(6):958–63. doi: 10.1007/s10118-025-3280-3.