📜偶氮苯置于四甲基氢氧化铵体系中,用 苯胺 用作溶剂,化学反应 16.0H,反应生成4-苯偶氮二苯胺 参考文献:Process For Preparing Substituted Aromatic Amines 标题:Process For Preparing Substituted Aromatic Amines 摘要:本发明提供了一种制备取代芳香基偶氮化合物的方法,包括在适当的溶剂体系中接触亲核化合物和含偶氮基的化合物,并在适当的碱和控制量的质子性物质存在下,在约10oc至约150oc的温度下,在封闭的反应区域中反应亲核化合物和含偶氮基的化合物,其中质子性物质与碱的摩尔比为0:1至约5:1.在另一实施例中,进一步在适当的溶剂体系,适当的碱和控制量的质子性物质存在下,在约70oc至约200oc的温度下,在封闭的反应区域中反应取代芳香基偶氮化合物和亲核化合物,其中质子性物质与碱的摩尔比为0:1至约5:1,以产生取代芳香胺.在另一实施例中,提供了一种制备取代芳香胺的方法,包括在适当的溶剂体系中接触亲核化合物和取代芳香基偶氮化合物,并在适当的碱和控制量的质子性物质存在下,在约70oc至约200oc的温度下,在封闭的反应区域中反应亲核化合物和取代芳香基偶氮化合物,其中质子性物质与碱的摩尔比为0:1至约5:1.在另一实施例中,本发明的取代芳香胺经还原烷基化,以产生烷基化二胺或其取代衍生物.
专利信息
专利号:WO-2024097977-A1 优先权日:2022-11-04 标题:Silk nanoparticle synthesis: tuning size, dispersity, and surface chemistry for drug delivery 发明人:SHAIDANI SAWNAZ; FALCUCCI THOMAS; FOSTER OLIVIA; SAHOO JUGAL KISHORE; HASTURK ONUR; KAPLAN DAVID L; JACOBUS CHARLOTTE S 权利人:TUFTS COLLEGE 摘要:Methods disclosed herein relate to generating silk nanoparticles with a low polydispersity index (PDI). Methods include adding a silk solution dropwise into a volatile solvent that is miscible with water, thereby forming a precipitate-bearing solution and applying shear forces to the precipitate-bearing solution for a length of time sufficient to achieve evaporation of at least 95% of the volatile solvent, thereby producing a population of silk fibroin nanoparticles in water having a polydispersity index (PDI) of 0.35 or less, including but not limited to, a PDI of 0.330 or less, 0.325 or less, 0.315 or less, 0.310 or less, 0.30 or less, 0.275 or less, 0.250 or less, 0.225 or less, or 0.200 or less. Parameters related to silk fibroin molecular weight, silk fibroin concentration, shear force application, and temperature may all be modified to achieve silk nanoparticles of a particular size exhibiting particular PDIs.
专利号:US-4169197-A 优先权日:1977-09-06 标 题:6-Deoxyneamines aminoglycoside compounds 发明人:MAGERLEIN BARNEY J 权利人:UPJOHN CO 摘要:6-Deoxyneamine, 6-deoxy-5-epineamine, their 5-O-glycosyl derivatives, 6-deoxy-5-oxoneamine and the derivatives therefrom are useful as antibacterial agents and/or as intermediates in the synthesis of antibacterially active 6-deoxyneamines.
专利号:US-4232148-A 优先权日:1979-03-05 标题 :6-Deoxyneamines 发明人:MAGERLEIN BARNEY J 权利人:UPJOHN CO 摘要:6-Deoxyneamine, 6-deoxy-5-epineamine, their 5-0-glycosyl derivatives, 6-deoxy-5-oxoneamine and the derivatives therefrom are useful as antibacterial agents and/or as intermediates in the synthesis of antibacterially active 6-deoxyneamines.
专利号:US-4252970-A 优先权日:1977-09-06 标题:6-Deoxyneamines 发明人:MAGERLEIN BARNEY J 权利人:UPJOHN CO 摘要:6-Deoxyneamine, 6-deoxy-5-epineamine, their 5-0-glycosyl derivatives, 6-deoxy-5-oxoneamine and the derivatives therefrom are useful as antibacterial agents and/or as intermediates in the synthesis of antibacterially active 6-deoxyneamines.
专利号:WO-2011069309-A1 优先权日:2009-12-08 标 题 :Di-quaternary ammonium base compound and its preparation method and use 发明人:DING KEHONG; SHI XUEFANG; CHENG XIAOXI; WANG QIUPING; GU KEJUN; XU JINLAI 权利人:JIANGSU YANGNONG CHEMICAL GROUP CO LTD; YANGZHOU FUYUAN CHEMICAL TECHNOLOGY CO LTD; DING KEHONG; SHI XUEFANG; CHENG XIAOXI; WANG QIUPING; GU KEJUN; XU JINLAI 摘要:A di-quaternary ammonium base compound of Formula (I) is provided wherein R1 and R2 are independently C1-C18 hydrocarbyl; R3, R4, R5, and R6 are independently C1-C6 straight-chained or branch-chained hydrocarbyl; and R7 is C2-C6 alkylene or alkoxyl substituted C2-C6 alkylene. The synthesis method of the di-quaternary ammonium base compound comprises preparing di-quaternary ammonium salt and obtaining di-quaternary ammonium base through ion-exchange. The di-quaternary ammonium base compound can be used as condensation catalyst for synthesizing rubber antioxidant intermediate 4-amino diphenylamine through condensation of nitrobenzene with aniline followed by hydrogenation. Compared with the normal quaternary ammonium base tetramethyl ammonium hydroxide, the di-quaternary ammonium base compound has convenient material source, low cost, simple preparation process, and good heat stability.
专利号:EP-3168224-A1 优先权日:2015-11-16 标题 :Organozinc composition 发明人:KNOCHEL PAUL; BECKER MATTHIAS 权利人:UNIV MUENCHEN LUDWIG MAXIMILIANS 摘要:The present invention relates to compositions containing a zinc complex wherein a zinc atom carries two amide ligands, a lithium salt and a defined solvent. The compositions are stable and show high activity as reactants for metalation reactions, and thus provide a valuable tool in organic synthesis. Moreover, the invention relates to processes for the preparation of the compositions and to synthetic procedures using them.
[参考文献]: Shawn Blumberg, Et Al. 4-(Phenylazo)Diphenylamine (Pda): A Universal Indicator For The Colorimetric Titration Of Strong Bases, Lewis Acids, And Hydride Reducing Agents. Tetrahedron Letters. Volume 56, Issue 23, 3 June 2015, Pages 3674-3678.
合成参考文献
摘要:Schafer, E. W., Jr., and W. A. Bowles Jr. 1985. Acute oral toxicity and repellency of 933 chemicals to house and deer mice. Archives of Environmental Contamination and Toxicology 14:111-129. 摘要:M.I. Vinnik. Uspekhi Khim. 35, 1922 (1966). 参考文献:10.1007/bf01485008 摘要:MAYER RL. [The relations between the toxic, allergic & carcinogenic properties of aromatic amines; group hypersensitivity to quinone bodies]. Klin Wochenschr. 1958 Oct 01;36(19):885–93. doi: 10.1007/bf01485008.