Dibutyl 2-methylbut-2-enedioate | 22644-92-4

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: Dibutyl 2-methylbut-2-enedioate
• CAS: 22644-92-4
• 化学式: C₁₃H₂₂O₄
• 分子量: 242.315
• InChiKey: CBTPGSGIWLRAKH-UHFFFAOYSA-N

物化性质

• 沸点：
  310.1±15.0 °C(Predicted)
• 密度：
  0.995±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  17
• 可旋转键数：
  10
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.69
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  Dibutyl 2-methylbut-2-enedioate 在 silica gel supported sulfonic acid 作用下， 以 乙腈 为溶剂， 以79%的产率得到methyl-succinic acid dibutyl ester
  参考文献：
  名称：

  使用位点隔离的概念对活性烯烃进行电还原加氢

  摘要：

  使用位点隔离的概念研究了活性烯烃的电还原氢化。通过电化学测量以及制备性电解表明，使用硅胶负载的磺酸（Si-SO 3 H）可以促进活性烯烃的电还原氢化中的质子化步骤，而不会在阴极发生电还原破坏。基于位点分离的概念，成功地进行了几种活化烯烃的电还原氢化，从而以高收率提供了相应的氢化产物。

  DOI：

  10.1016/j.elecom.2016.10.015

文献信息

• PROPYLENE COPOLYMER, POLYPROPYLENE COMPOSITION AND USES THEREOF, TRANSITION METAL COMPOUND AND OLEFIN POLYMERIZATION CATALYST
  申请人：Ikenaga Shigenobu

  公开号：US20080312461A1

  公开（公告）日：2008-12-18

  A transition metal compound represented by the following formula (2a):

  一个以以下公式（2a）表示的过渡金属化合物：
• Olefin block copolymers processes for producing the same and uses thereof
  申请人：——

  公开号：US20030055179A1

  公开（公告）日：2003-03-20

  The present invention provides polymers having any one of properties including affinity for metals or polar resins, impact resistance, mar resistance, heat resistance, rigidity, oil resistance, transparency, anti-fogging properties, electric insulating properties, high breakdown voltage, coating properties, low-temperature flexibility, moldability, environmental degradation, fluidity and dispersibility, and provides a process for preparation thereof. The olefin block copolymers (A-1) of the invention are represented by the formula (I) PO 1 —g 1 —B 1 (I) (wherein PO 1 is a segment composed of repeating units derived from an olefin having 2 to 20 carbon atoms, g 1 is an ester, ether, amide, imide, urethane, urea, silylether or carbonyl linkage, and B 1 is a segment containing an unsaturated hydrocarbon or a hetero atom). The olefin block copolymers are suitable for uses in adhesives; various molded articles such as construction and civil engineering materials, automobile interior and exterior materials, gasoline tanks, electric and electronic parts, medical care and sanitation materials, materials of miscellaneous goods, resin materials having environmental degradation properties, films and sheets; modifiers and dispersions.

  本发明提供了具有以下任一性质的聚合物，包括对金属或极性树脂的亲和性，抗冲击性，抗刮伤性，耐热性，刚度，耐油性，透明性，防雾性能，电绝缘性能，高击穿电压，涂料性能，低温柔性，可塑性，环境降解性，流动性和分散性，并提供其制备方法。本发明的烯烃嵌段共聚物（A-1）由公式（I）表示：PO1-g1-B1（I）（其中PO1是由具有2至20个碳原子的烯烃衍生的重复单元组成的片段，g1是酯，醚，酰胺，亚胺，脲，硅醚或羰基连接，B1是含有不饱和碳氢化合物或杂原子的片段）。烯烃嵌段共聚物适用于粘合剂；各种成型品，如建筑和土木工程材料，汽车内外饰料，汽油箱，电子和电气零件，医疗保健和卫生材料，杂货物料，具有环境降解性能的树脂材料，薄膜和片材；改性剂和分散剂。
• Propylene copolymer, polypropylene composition, and uses thereof, transition metal compounds and catalyst for olefin polymerization
  申请人：Ikenaga Shigenobu

  公开号：US20060276607A1

  公开（公告）日：2006-12-07

  The present invention provides a propylene/1-butene random copolymer (PBR) having excellent flexibility, impact resistance, heat resistance and low-temperature heat-seal properties, a polypropylene composition containg the copolymer, a sheet, film or stretched film comprising the composition and a composite film having a layer of the composition. The propylene/1-butene random copolymer contains 60 to 90 mol % of propylene units and 10 to 40 mol % of 1-butene units and has a triad isotacticity of not less than 85% and not more than 97.5%, a molecular weight distribution (Mw/Mn) of from 1 to 3, an intrinsic viscosity of from 0.1 to 12 dl/g, a melting point (Tm) of from 40 to 120° C., and satisfies the following relation 146 exp(−0.022M)≧ Tm ≧125 exp(−0.032M) wherein Tm represents a melting point and M (mol %) represents a content of 1-butene constituent units. The invention, further, provides a transition metal compound useful as an olefin polymerization catalyst and an olefin polymerization catalyst containing the transition metal compound. The transition metal compound is represented by the following formula (2a): wherein each of R 1 and R 3 is hydrogen, R 2 and R 4 are selected from a hydrocarbon group and silicon-containing group, R 5 to R 13 are selected from hydrogen, a hydrocarbon group and silicon-containing group, and adjacent substituent groups R 5 to R 12 may be linked to form a ring. R 14 is an aryl group, and R 13 and R 14 may be linked to form a ring. M is a Group 4 transition metal, Y is a carbon atom, Q is halogen, etc, and j is an integer of 1 to 4.

  本发明提供一种具有优异的柔韧性、抗冲击性、耐热性和低温热封性能的丙烯/1-丁烯随机共聚物（PBR），以及包含该共聚物的聚丙烯组合物、由该组合物制成的片材、薄膜或拉伸膜以及具有该组合物层的复合膜。该丙烯/1-丁烯随机共聚物含有60到90摩尔％的丙烯单元和10到40摩尔％的1-丁烯单元，三元等规度不小于85％且不大于97.5％，分子量分布（Mw/Mn）为1到3，固有粘度为0.1到12 dl/g，熔点（Tm）为40到120℃，并满足以下关系式146 exp（-0.022M）≥Tm≥125 exp（-0.032M），其中Tm表示熔点，M（摩尔％）表示1-丁烯组分单元的含量。本发明还提供一种过渡金属化合物，可用作烯烃聚合催化剂，以及含有该过渡金属化合物的烯烃聚合催化剂。该过渡金属化合物由以下式（2a）表示：其中R1和R3分别为氢，R2和R4选自烃基和含硅基，R5到R13选自氢、烃基和含硅基，相邻的取代基R5到R12可连接形成环。R14为芳基，R13和R14可连接形成环。M为4族过渡金属，Y为碳原子，Q为卤素等，j为1到4的整数。
• PROCESS FOR POLYMERIZING ALPHA-OLEFIN
  申请人：MITSUI PETROCHEMICAL INDUSTRIES, LTD.

  公开号：EP0303704A1

  公开（公告）日：1989-02-22

  process for polymerizing an a-olefin, which comprises conducting polymerization of the a-olefin using a catalyst formed by previously bringing a highly active titanium solid catalyst component, a catalyst component of an organo-metallic compound of a group I to III metal of the periodic table, a catalyst component of an organic halogen compound or of a transition metal compound, and a catalyst component of an organo-silicone compound or of a sterically hindered amine into contact with each other in an inert solvent in the absence of the a-olefin, or a catalyst formed by conducting preliminary polymerization of the a-olefin in the presence of the above-described catalyst wherein the final component is optional. This process polymers having excellent stereospecificity with the catalyst showing high activity, thus attaining industrial advantages.

  聚合 a-olefin 的工艺，该工艺包括使用一种催化剂进行 a-olefin 的聚合，该催化剂是通过事先将一种高活性钛固体催化剂组分、一种元素周期表第 I 至 III 族金属的有机金属化合物催化剂组分、一种有机卤素化合物或一种过渡金属化合物的催化剂组分、一种有机硅化合物或一种立体受阻胺的催化剂组分在一种惰性溶剂中相互接触而形成的、和有机硅化合物或立体受阻胺的催化剂组分在没有 a-olefin 的情况下在惰性溶剂中相互接触，或在有上述催化剂存在的情况下对 a-olefin 进行初步聚合而形成的催化剂，其中最终组分是可选的。这种工艺生产出的聚合物具有极佳的立体特异性，催化剂活性高，因而具有工业优势。
• PROCESS FOR PRODUCING OLEFIN POLYMER AND OLEFIN POLYMER
  申请人：Mitsui Chemicals, Inc.

  公开号：EP1092730A1

  公开（公告）日：2001-04-18

  This invention provides an olefin polymer production method by which olefin polymers can be obtained at high polymerization activity under the conditions of reduced hydrogen concentration and provides silyl-terminated olefin polymers obtained by this production method. The olefin polymer production method is characterized in that an olefin is polymerized under the presence of a catalyst comprising a transition metal compound (A) of Groups 3 to 10 of the periodic table, at least one compound (B) selected from among organoaluminum oxycompounds (B-1), compounds (B-2) that react with the abovementioned compound (A) to form an ion pair, and organoaluminum compounds (B-3), and under the coexistence of an organosilicon compound (C) or dialkylzinc compound (D) and hydrogen (E). This invention also provides an olefin polymer production method by which olefin polymers can be obtained at high polymerization activity and provides silyl-terminated olefin polymers obtained by this production method. This olefin polymer production method is characterized in that an olefin is polymerized under the presence of a catalyst comprising a transition metal compound (A-i) of Groups 3 to 10 of the periodic table, at least one compound (B) selected from among organoaluminum oxycompounds (B-1), compounds (B-2) that react with the abovementioned compound (A-i) to form an ion pair, and organoaluminum compounds (B-3), under the coexistence of an organosilicon compound (C) or dialkylzinc compound (D), and under the non-presence of hydrogen (E).

  本发明提供了一种烯烃聚合物生产方法，通过该方法可以在氢浓度降低的条件下获得高聚合活性的烯烃聚合物，并提供了通过该生产方法获得的硅烷封端的烯烃聚合物。该烯烃聚合物生产方法的特征在于，烯烃在催化剂存在下聚合，催化剂包括周期表中第 3 至 10 族的过渡金属化合物 (A)、至少一种选自有机铝氧化合物 (B-1) 的化合物 (B)、与上述化合物（A）反应形成离子对的化合物（B-2）和有机铝化合物（B-3），以及在有机硅化合物（C）或二烷基锌化合物（D）和氢气（E）共存的条件下。本发明还提供了一种烯烃聚合物生产方法，通过该方法可以获得高聚合活性的烯烃聚合物，并提供了通过该生产方法获得的硅烷封端烯烃聚合物。该烯烃聚合物生产方法的特征在于，烯烃在催化剂存在下聚合，催化剂包括元素周期表中第 3 至 10 族的过渡金属化合物（A-i）、至少一种选自有机铝氧化合物（B-1）的化合物（B-2）、与上述化合物 (A-i) 反应形成离子对的化合物 (B-2) 和有机铝化合物 (B-3)，有机硅化合物 (C) 或二烷基锌化合物 (D)，以及不存在氢 (E) 的情况下。