2,3,4-trimethyl-cyclopentanone | 85794-10-1

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2,3,4-trimethyl-cyclopentanone
• 英文别名: 2,3,4-Trimethyl-cyclopentanon；2,3,4-Trimethylcyclopentanone；2,3,4-trimethylcyclopentan-1-one
• CAS: 85794-10-1
• 化学式: C₈H₁₄O
• 分子量: 126.199
• InChiKey: WJJQRAOMTFGCCU-UHFFFAOYSA-N

物化性质

• 沸点：
  166-170 °C
• 密度：
  0.8964 g/cm3

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2,3,4-trimethyl-cyclopentanone 、 氰乙酸乙酯 、 氰化钾 、 水 、 乙醇 生成 ethyl 2-cyano-2-(1-cyano-2,3,4-trimethylcyclopentyl)acetate
  参考文献：
  名称：

  CHATTERJEE, D. N.;CHAKRABORTY, B., CURR. SCI., INDIA, 1983, 52, N 1, 23-24

  摘要：

  DOI：
• 作为产物：
  描述：

  3,4-二甲基-己二酸 生成 2,3,4-trimethyl-cyclopentanone
  参考文献：
  名称：

  CHATTERJEE, D. N.;CHAKRABORTY, B., CURR. SCI., INDIA, 1983, 52, N 1, 23-24

  摘要：

  DOI：

文献信息

• Process for producing 2-alkyl-2cyclopentenones
  申请人：TAKASAGO INTERNATIONAL CORPORATION

  公开号：US20030109755A1

  公开（公告）日：2003-06-12

  Industrially advantageous processes for producing a 2-alkyl-2-cyclopentenone in high yields starting from a 2-(1-hydroxyalkyl)cyclopentanone or a 2-alkylidenecyclopentanone, which are obtainable from a cyclopentanone and a carbonyl compound. A 2-(1-hydroxyalkyl)cyclopentanone represented by the following general formula (1): 1 (wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 and R 7 each independently represents hydrogen atom, an alkyl group having 1 to 10 carbon atoms which may have one or more substituents or an aromatic group which may have one or more substituents, and each of (1) R 6 or R 7 with R 3 and (2) R 6 or R 7 with R 4 or R 5 may be together combined to form a ring which may have a double bond) is subjected to dehydrative isomerization in the presence of a bromine compound and/or an iodine compound.

  从环戊酮和羰基化合物获得的2-(1-羟基烷基)环戊酮或2-烷基亚烯环戊酮，是从高产率开始生产2-烷基-2-环戊酮的工业上有利的过程。在以下一般式（1）中表示的2-(1-羟基烷基)环戊酮中（其中R1、R2、R3、R4、R5、R6和R7分别独立地表示氢原子、具有1至10个碳原子的烷基基团，可能具有一个或多个取代基或可能具有一个或多个取代基的芳香基团，且(1) R6或R7与R3和(2) R6或R7与R4或R5中的每一个可能结合在一起形成可能具有双键的环)在溴化合物和/或碘化合物的存在下进行脱水异构化。
• CATALYST COMPOSITION FOR PREPARING ELASTIC COPOLYMER, AND METHOD FOR PREPARING ELASTIC COPOLYMER, WHICH COMPRISES ETHYLENE AND ALPHA-OLEFIN OR ETHYLENE, ALPHA-OLEFIN AND UNCONJUGATED DIENE, BY USING SAME
  申请人：KUMHO POLYCHEM CO., LTD.

  公开号：US20200270382A1

  公开（公告）日：2020-08-27

  The present invention relates to a method for preparing an ethylene-based elastic copolymer, and more particularly, to a method for preparing an ethylene-based elastic copolymer by using a catalyst composition for preparing an ethylene-based elastic copolymer, the catalyst composition comprising a binuclear constrained geometry transition metal compound, as a main catalyst, having a structural advantage to obtain a high-molecular-weight ethylene-based elastic copolymer due to a high polymerization activity and comonomer reactivity because the binuclear constrained geometry transition metal compound has a structure in which cyclopentadiene ligands of two constrained geometry catalysts are linked by 1,4-phenylene, and one or more cocatalyst compounds selected from the group consisting of an organoaluminum compound, an organoaluminoxane compound, and a boron compound.

  本发明涉及一种制备乙烯基弹性共聚物的方法，更具体地，涉及一种使用催化剂组合物制备乙烯基弹性共聚物的方法，该催化剂组合物包括双核约束几何过渡金属化合物作为主催化剂，由于双核约束几何过渡金属化合物具有环戊二烯配体的结构，两个约束几何催化剂的环戊二烯配体通过1,4-苯基相连，因此具有高聚合活性和共聚单体反应性的结构优势，能够获得高分子量的乙烯基弹性共聚物。催化剂组合物还包括从有机铝化合物、有机铝氧烷化合物和硼化合物组成的群体中选择的一个或多个协同催化剂化合物。
• Transition metal complex, catalyst for olefin polymerization, and process for producing olefin polymer with the same
  申请人：——

  公开号：US20040242410A1

  公开（公告）日：2004-12-02

  The present invention relates to a transition metal complex represented by the formula (I): 1 wherein M represents a Group 4 transition metal; —Y— represents (a): —C(R 1 )(R 20 )-A-, (b): —C(R 1 )(R 20 )-A 1 (R 30 )—, (c): —C(R 1 )=A 1 -, or (d): —C(R 1 )=A 1 -A 2 -R 30 ; A represents a Group 16 element and A 1 and A 2 each represents a Group 15 element; R 1 to R 9 , R 20 , and R 30 are the same or different and each represents an optionally substituted hydrocarbon group, etc.; and X 1 and X 2 are the same or different and each represents a hydrogen atom, a halogen atom, an optionally substituted C 1-10 alkyl group, etc., and an intermediate product thereof, and a catalyst for olefin polymerization which comprises said transition metal complex as a component.

  本发明涉及一种由式(I)表示的过渡金属配合物：1其中M代表4族过渡金属；—Y—表示(a)：—C(R1)(R20)-A-，(b)：—C(R1)(R20)-A1(R30)—，(c)：—C(R1)=A1-，或(d)：—C(R1)=A1-A2-R30；A代表16族元素，A1和A2分别代表15族元素；R1至R9、R20和R30相同或不同，每个代表可选取代的碳氢基团等；X1和X2相同或不同，每个代表氢原子、卤原子、可选取代的C1-10烷基团等，以及其中间产物，以及包括所述过渡金属配合物作为组分的烯烃聚合催化剂。
• CARBOXYLIC ACID DERIVATIVES AND PHARMACEUTICAL AGENT COMPRISING THE SAME AS ACTIVE INGREDIENT
  申请人：Tani Kousuke

  公开号：US20090318703A1

  公开（公告）日：2009-12-24

  A carboxylic acid derivative of formula (I): wherein R 1 is —COOH, —COOR 6 , etc.; A is a single bond, alkylene, etc.; R 2 is alkyl, alkoxy, etc.; B is a carbocyclic ring or a heterocyclic ring; Q is alkylnene-Cyc2, etc.; D is a linking chain; and R 3 is alkyl, a carbocyclic ring or a heterocyclic ring, or a non-toxic salt thereof. The compound of formula (I) binds to PGE 2 receptor, especially subtypes EP 3 and/or EP 4 and show the antagonizing activity, are useful for the prevention and/or treatment of diseases induced pain, itch, urticaria, allergy, urinary frequency, urinary disturbance, Alzheimer's disease, cancer, dysmenorrhea, endometriosis, etc.

  化学式为（I）的羧酸衍生物：其中R1为—COOH，—COOR6等；A为单键，烷基等；R2为烷基，烷氧基等；B为碳环或杂环；Q为烷基烯-Cyc2等；D为连接链；R3为烷基，碳环或杂环，或其无毒盐。化合物（I）与PGE2受体结合，特别是亚型EP3和/或EP4，并显示拮抗活性，对于预防和/或治疗由疼痛、瘙痒、荨麻疹、过敏、尿频、尿液障碍、阿尔茨海默病、癌症、痛经、子宫内膜异位症等引起的疾病有用。
• TRANSITION METAL COMPLEX, CATALYST FOR OLEFIN POLYMERIZATION, AND PROCESS FOR PRODUCING OLEFIN POLYMER WITH THE SAME
  申请人：HANAOKA Hidenori

  公开号：US20100048933A1

  公开（公告）日：2010-02-25

  The present invention relates to a transition metal complex represented by the formula (I): wherein M represents a Group 4 transition metal; —Y— represents (a): —C(R 1 )(R 20 )-A-, (b): —C(R 1 )(R 20 )-A 1 (R 30 )—, (c): —C(R 1 )=A 1 -, or (d): —C(R 1 )=A 1 -A 2 -R 30 ; A represents a Group 16 element and A 1 and A 2 each represents a Group 15 element; R 1 to R 9 , R 20 , and R 30 are the same or different and each represents an optionally substituted hydrocarbon group, etc.; and X 1 and X 2 are the same or different and each represents a hydrogen atom, a halogen atom, an optionally substituted C 1-10 alkyl group, etc., and an intermediate product thereof, and a catalyst for olefin polymerization which comprises said transition metal complex as a component.

  本发明涉及一种由式(I)表示的过渡金属配合物：其中M代表4族过渡金属；-Y-代表(a)：-C(R1)(R20)-A-，(b)：-C(R1)(R20)-A1(R30)-，(c)：-C(R1)=A1-，或(d)：-C(R1)=A1-A2-R30；A代表16族元素，A1和A2各代表15族元素；R1至R9、R20和R30相同或不同，每个代表一个可选取代的碳氢基团等；X1和X2相同或不同，每个代表氢原子、卤原子、可选取代的C1-10烷基团等；以及其中间体产品和以该过渡金属配合物为组分的烯烃聚合催化剂。