1,1'-(Ethane-1,1-diyl)dipyrrolidine | 5499-02-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯烷类
• 英文名称: 1,1'-(Ethane-1,1-diyl)dipyrrolidine
• 英文别名: 1-(1-pyrrolidin-1-ylethyl)pyrrolidine
• CAS: 5499-02-5
• 化学式: C₁₀H₂₀N₂
• 分子量: 168.28
• InChiKey: JVSJHOZKVMZMQA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  6.5
• 氢给体数：
  0
• 氢受体数：
  2

文献信息

• Selective syntheses of substituted amines
  申请人：AIR PRODUCTS AND CHEMICALS, INC.

  公开号：EP0169547A2

  公开（公告）日：1986-01-29

  Selective mono- or di-amination of alkanediols is con- trollably obtained by catalytic reaction with secondary amines at moderate temperature and autogenous pressure, by selection of the catalyst employed. Ruthenium complexes compounded or admixed with organic phosphines, such as triphenylphosphine, favor high yields of aminoalkanol, while ruthenium complexes in the absence of organic phosphines favor production of alkylene diamine. Iridium complexes with or without triphenylphosphine in admixture or chemical combination, also promote production of alkylenediamine.

  通过选择所使用的催化剂，在适度温度和自生压力下与仲胺进行催化反应，可以获得烷二醇的选择性单-或二-氨基化。 与有机膦（如三苯基膦）复合或混合的钌络合物有利于氨基化烷醇的高产率，而不含有机膦的钌络合物则有利于烷二胺的生产。 与三苯基膦混合或不与三苯基膦混合或化学组合的铱络合物也可促进烷二胺的生产。
• Rubber composition
  申请人：THE GOODYEAR TIRE & RUBBER COMPANY

  公开号：EP0263054A2

  公开（公告）日：1988-04-06

  It has been determined that certain rubbery polymers having multiple glass transition temperatures can be utilized in making tires which have improved rolling resistance, improved wet skid resistance, and outstanding tread wear. These rubbery polymers are derived from at least one conjugated diolefin monomer, have a first glass transition temperature which is between -110°C and -20°C and have a second glass transition temperature which is between -50°C and 0°C. These rubber polymers can be homopolymers of conjugated diolefin monomers, copolymers of more than one conjugated diolefin monomer, or copolymers derived from at least one conjugated diolefin monomer and at least one vinyl aromatic monomer.

  已确定某些具有多个玻璃化转变温度的橡胶聚合物可用于制造滚动阻力更强、湿滑阻力更强、胎面磨损更出色的轮胎。这些橡胶聚合物由至少一种共轭二烯烃单体衍生而来，其第一玻璃化转变温度介于 -110°C 和 -20°C 之间，第二玻璃化转变温度介于 -50°C 和 0°C 之间。这些橡胶聚合物可以是共轭二烯烃单体的均聚物、一种以上共轭二烯烃单体的共聚物，或由至少一种共轭二烯烃单体和至少一种乙烯基芳香族单体衍生的共聚物。
• Polymerization process
  申请人：THE GOODYEAR TIRE & RUBBER COMPANY

  公开号：EP0282437A2

  公开（公告）日：1988-09-14

  Metals from Groups I and II and organometallic compounds thereof can be used to catalyze the polymerization of diene monomers into polymers. The polymers formed in such polymerizations are terminated with the metal used to catalyze the polymerization and are sometimes referred to as living polymers. Very useful blends of such polymers can be made by utilizing the process of the present invention. More specifically, the present invention discloses a process for preparing a polydiene rubber blend comprising: (1) polymerizing at least one diene monomer utilizing at least one catalyst selected from the group consisting of Group I metals, Group II metals, organometallic compounds containing a Group I metal, and organometallic compounds containing a Group II metal, to a conversion which is within the range of 30% to 70% to produce low molecular weight polydiene chains; (2) joining from 20% to 70% of said low molecular weight polydiene chains with a suitable branching agent; and (3) allowing the polymerization to continue so as to produce said polydiene rubber blends.

  I 族和 II 族金属及其有机金属化合物可用于催化二烯单体聚合成聚合物。在这种聚合反应中形成的聚合物以用于催化聚合反应的金属为末端，有时被称为活聚合物。利用本发明的工艺可以制造出非常有用的此类聚合物混合物。更具体地说，本发明公开了一种制备聚二稀橡胶混合物的工艺，包括(1)利用选自第一类金属、第二类金属、含第一类金属的有机金属化合物和含第二类金属的有机金属化合物的至少一种催化剂，使至少一种二烯单体聚合，其转化率在30%至70%范围内，以产生低分子量的聚二烯链；(2)用合适的支化剂连接20%至70%的所述低分子量聚二烯链；以及(3)使聚合继续进行，以产生所述聚二烯橡胶混合物。
• Segmented elastomer
  申请人：THE GOODYEAR TIRE & RUBBER COMPANY

  公开号：EP0438967A1

  公开（公告）日：1991-07-31

  It is important for tire treads to exhibit good wet skid resistance, low rolling resistance, good wear characteristics and good abrasion resistance. This is often accomplished by utilizing a blend of various rubbers in making tire tread compositions. However, some of the desirable characteristics of the individual rubbers in the blend are frequently lost on mixing. The segmented elastomers of this invention offer a unique combination of desirable characteristics for utilization in making tire tread compositions. This invention more specifically discloses a rubber polymer which has an excellent combination of properties for use in making tire treads which is comprised of: (a) a first segment which is comprised of repeat units which are derived from isoprene having a microstructure wherein there are from about 75% to about 98% 1,4-linkages and from about 2% to about 25% 3,4-linkages and wherein the first segment has a number average molecular weight which is within the range of about 25,000 to about 350,000; and (b) a second segment which is comprised of repeat units which are derived from 30 to 95 weight percent 1,3-butadiene and from 5 to 70 weight percent styrene, wherein the sum of (1) the product of 1.7 and the weight percent of styrene in the second segment and (2) the percentage of 1,2-butadiene linkages in the second segment is within the range of about 50% to about 92%, and wherein the second segment has a number average molecular weight which is within the range of about 50,000 to about 350,000.

  轮胎胎面必须具有良好的防滑性、低滚动阻力、良好的磨损特性和耐磨性。这通常是通过在轮胎胎面成分中使用各种橡胶的混合物来实现的。然而，混合橡胶中的单个橡胶的一些理想特性往往会在混合时丧失。本发明的分段弹性体提供了独特的理想特性组合，可用于制造轮胎胎面组合物。本发明更具体地公开了一种橡胶聚合物，它具有用于制造轮胎胎面的优异组合特性，由以下部分组成：(a) 第一段，由异戊二烯衍生的重复单元组成，其微观结构中 1,4-联结占约 75% 至约 98%，3,4-联结占约 2% 至约 25%，第一段的平均分子量在约 25,000 至约 350,000 之间；(b) 第二段由 30%至 95%的 1,3-丁二烯和 5%至 70%的苯乙烯的重复单元组成， 其中(1)1,3-丁二烯的重量百分比与苯乙烯的重量百分比的乘积之和为 1.7 的乘积和第二段中苯乙烯的重量百分比，以及(2) 第二段中 1，2-丁二烯链节的百分比之和在约 50% 至约 92% 的范围内，其中第二段的数均分子量在约 50,000 至约 350,000 的范围内。
• Method for preparing asymmetric radial polymers
  申请人：SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.

  公开号：EP0540109A1

  公开（公告）日：1993-05-05

  A method for preparing asymmetric radial polymers wherein the different polymeric arms are contacted sequentially with a non-polymerizable coupling agent. Contacting of the final step in the process, which frequently but not necessarily always will be the second step in the process, will be carried out in the presence of a polar compound suitable for increasing the amount of vinyl content in a conjugated diolefin polymer during polymerization thereof. The method used narrows the relative arm distribution of the several asymmetric radial polymers produced and significantly increases the amount of total product having the desired ratio of polymeric arms and accomplishes this objective in relatively short reaction time. Any non-polymerizable coupling agent known in the prior art to be useful in the production of asymmetric radial polymers may be used in the method of this invention but non-polymerizable coupling agents having from 3 to about 12 functional groups are most effective and non-polymerizable coupling agents having 2 or 3 functional groups are most preferred. Useful polar compounds are, generally, selected from the group consisting of ethers, tertiary amines, pyridine and pyrolidene compounds.

  一种制备不对称径向聚合物的方法，其中不同的聚合物臂依次与一种不可聚合的偶联剂接触。工艺中的最后一步（通常但不一定总是工艺中的第二步）的接触将在一种极性化合物的存在下进行，该极性化合物适用于在聚合共轭二烯烃聚合物时增加其乙烯基含量。所使用的方法缩小了所生产的几种不对称径向聚合物的相对臂分布，大大增加了具有所需聚合物臂比例的总产品数量，并在相对较短的反应时间内实现了这一目标。本发明方法中可使用现有技术中已知的任何可用于生产不对称径向聚合物的不可聚合偶联剂，但具有 3 至 12 个官能团的不可聚合偶联剂最为有效，而具有 2 或 3 个官能团的不可聚合偶联剂最为优选。有用的极性化合物一般选自醚、叔胺、吡啶和吡咯烷化合物组成的组。