lithium dihexylamide

• 分子结构分类: 有机化合物 - 有机盐 - 有机金属盐
• 英文名称: lithium dihexylamide
• 英文别名: Lithium;dihexylazanide
• 化学式: C₁₂H₂₆N*Li
• 分子量: 191.286
• InChiKey: HOLCSXZMVPOUQR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.52
• 重原子数：
  14
• 可旋转键数：
  10
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  3,5-二溴吡啶 、 lithium dihexylamide 在 lithium chloro-isopropyl-magnesium chloride 、 zinc(II) chloride 作用下， 以 四氢呋喃 为溶剂， 反应 0.5h， 以54%的产率得到(5-bromopyridin-3-yl)dihexylamine
  参考文献：
  名称：

  通过铜（I）介导的有机锌试剂与酰胺化锂的氧化交叉偶联制备杂环胺

  摘要：

  通过使用PhI（OAc）2作为氧化剂，通过多官能氨基cup酸锌的氧化偶联，可以轻松制备官能化的杂芳族胺。各种敏感的杂环有机金属会经历这种氧化交叉偶联反应，从而提供胺化的杂芳族化合物。较高的官能团耐受性和对空间位阻的相对敏感性是这种一般胺化反应的特征。描述了一种制备受保护的伯和仲以及叔杂芳基胺的实用程序。 胺化-酰胺基铜酸盐-CN键形成-酰胺化锂-多官能锌试剂

  DOI：

  10.1055/s-0029-1220008

文献信息

• MODIFYING AGENT, METHOD FOR PRODUCING MODIFIED CONJUGATED DIENE POLYMER USING MODIFYING AGENT, AND MODIFIED CONJUGATED DIENE POLYMER
  申请人：Nakatani Kenji

  公开号：US20120220716A1

  公开（公告）日：2012-08-30

  Provided are a modifying agent obtained by subjecting a silicon-containing compound having a protected primary amino group and at least two hydrolyzable groups to complete condensation, a method of producing a modified conjugated diene-based polymer, a modified conjugated diene-based polymer obtained by the production method, a rubber composition using the polymer, and a pneumatic tire. The modified conjugated diene-based polymer has excellent low heat generating property and abrasion resistance, and the rubber composition is obtained by using the modified conjugated diene-based polymer and the pneumatic tire is obtained by using the rubber composition.

  提供的是一种通过将具有保护的一级氨基团和至少两个可水解基团的含硅化合物进行完全缩合而获得的改性剂，一种生产改性共轭二烯基聚合物的方法，通过生产方法获得的改性共轭二烯基聚合物，使用该聚合物的橡胶组合物以及一种气动轮胎。改性共轭二烯基聚合物具有优异的低热发生性和耐磨性，使用改性共轭二烯基聚合物制得的橡胶组合物，以及使用该橡胶组合物制得的气动轮胎。
• MIXTURES OF AMINOSILYL-FUNCTIONALIZED STYRENES, THEIR PREPARATION AND THEIR USE IN THE PRODUCTION OF ELASTOMERIC COPOLYMERS
  申请人：SYNTHOS S.A.

  公开号：US20210061826A1

  公开（公告）日：2021-03-04

  The present invention relates to mixtures of specific styrene derivatives and their use in the production of an elastomeric copolymer. The styrene derivatives are of the following formula.

  本发明涉及特定苯乙烯衍生物的混合物及其在生产弹性共聚物中的应用。苯乙烯衍生物的化学式如下。
• Activating organometallic composition for the (co) polymerization of alpha-olefins comprising fluorinated cyclopentadienyl compounds
  申请人：——

  公开号：US20040198934A1

  公开（公告）日：2004-10-07

  An organometallic composition which can be used as activating component in a metallocene catalyst for the (co)polymerization of &agr;-olefins, comprises: (A) a fluorinated di-unsaturated cyclic compound, having a relatively acid hydrogen atom, (B) an organometallic compound sufficiently basic to react with the acid hydrogen of the above compound (A), and (C) a polar aprotic organic compound, not containing metallic atoms, having a dielectric constant, in the pure state, equal to or greater than 2, and a weak coordinating capacity. Said composition allows a metallocene catalytic system of the ionic type to be obtained, with a high activity in the (co)polymerization of olefins and a reduced content of metallic residue in the polymeric product thus obtained.

  一种可以用作金属茂催化剂中活性组分的有机金属化合物，用于α-烯烃的(共)聚合反应，包括：(A)一种含有相对酸性氢原子的氟代二烯环化合物，(B)一种有机金属化合物，足够碱性以与上述化合物(A)的酸性氢原子反应，以及(C)一种极性非脂肪有机化合物，不含金属原子，在纯态下具有介电常数等于或大于2的弱配位能力。该组合物可以获得离子型金属茂催化系统，在α-烯烃的(共)聚合反应中具有高的活性，并且所得到的聚合物产品中含有较少的金属残留物。
• METHOD FOR PRODUCING MODIFIED CONJUGATED DIENE POLYMER/COPOLYMER, MODIFIED CONJUGATED DIENE POLYMER/COPOLYMER, AND RUBBER COMPOSITION AND TIER USING THE SAME
  申请人：Tanaka Ken

  公开号：US20110146877A1

  公开（公告）日：2011-06-23

  The invention provides a method for producing a modified conjugated diene (co)polymer, the method including comprising: a modification reaction step including causing an organic silane compound to react with a conjugated diene (co)polymer having an active site at the active site, the organic silane compound having a characteristic group for forming a silanol group through hydrolysis and, in the vicinity of the characteristic group, (i) a functional group which binds the organic silane compound to the conjugated diene (co)polymer via addition to or substitution at the active site and which promotes reaction between the silanol group and a reinforcing filler after the addition or substitution reaction, or (ii) a functional group which promotes reaction between the silanol group and a reinforcing filler, and a hydrolyzation step performed after the modification reaction step; a modified conjugated diene (co)polymer having, at a molecular end of the conjugated diene (co)polymer, a silanol group, and a functional group in the vicinity of the silanol group, the functional group accelerating reaction between the silanol group and the reinforcing filler; a rubber composition containing the (co)polymer and carbon black having specific characteristics; and a tire formed from the rubber composition.

  本发明提供了一种生产改性共轭二烯（共）聚合物的方法，该方法包括：修改反应步骤，包括使有机硅化合物与具有活性位点的共轭二烯（共）聚合物在活性位点处反应，所述有机硅化合物具有通过水解形成硅醇基团的特征基团，在特征基团附近，（i）通过加成或置换作用于活性位点，将有机硅化合物与共轭二烯（共）聚合物结合的功能基团，并促进加成或置换反应后硅醇基团和增强填料之间的反应，或（ii）促进硅醇基团和增强填料之间反应的功能基团；修改反应步骤后进行水解步骤；在共轭二烯（共）聚合物的分子末端具有硅醇基团和硅醇基团附近的功能基团的改性共轭二烯（共）聚合物；包含具有特定特性的碳黑的橡胶组合物；以及由该橡胶组合物形成的轮胎。
• Method for Producing Modified Conjugated Diene-Based Polymer, Modified Conjugated Diene-Based Polymer, Modified Conjugated Diene-Based Polymer Composition, Rubber Composition and Tire
  申请人：Yamada Chigusa

  公开号：US20140213721A1

  公开（公告）日：2014-07-31

  A method for producing a modified conjugated diene-based polymer including a polymerization step of obtaining a conjugated diene-based polymer having an active end by use of a polymerization initiator containing a compound having at least one nitrogen atom in a molecule and an organic lithium compound; and a modification step of reacting a modifier represented by the following chemical formula (6) with the active end of the conjugated diene-based polymer: wherein R 4 to R 7 each independently represent an alkyl group having 1 to 20 carbon atoms or an aryl group having 6 to 20 carbon atoms; R 8 represents an alkylene group having 3 to 10 carbon atoms; R 9 represents an alkylene group having 1 to 20 carbon atoms; m is an integer of 1 or 2; and n is an integer of 2 or 3.

  一种生产改性共轭二烯基聚合物的方法，包括以下步骤： 1. 通过使用含有至少一个氮原子的化合物和有机锂化合物的聚合引发剂，进行聚合反应步骤，以获得具有活性端的共轭二烯基聚合物。 2. 使用以下化学式（6）表示的改性剂与共轭二烯基聚合物的活性端反应，进行改性步骤： 其中，R4至R7各自独立地表示具有1至20个碳原子的烷基或具有6至20个碳原子的芳基；R8表示具有3至10个碳原子的烷基；R9表示具有1至20个碳原子的烷基；m为1或2的整数；n为2或3的整数。