5-tert-butyl-2-cyclopenten-1-one | 89244-90-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 5-tert-butyl-2-cyclopenten-1-one
• 英文别名: 5-tert-Butylcyclopent-2-en-1-one
• CAS: 89244-90-6
• 化学式: C₉H₁₄O
• 分子量: 138.21
• InChiKey: IJDOBJXZFNYSNG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  10
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  2-Tert-butylpent-4-enoyl chloride 在 N,N-二异丙基乙胺 作用下， 以 乙腈 为溶剂， 反应 3.0h， 生成 5-tert-butyl-2-cyclopenten-1-one
  参考文献：
  名称：

  Trialkylamine-Mediated Intramolecular Acylation of Akenes with Carboxylic Acid Chlorides

  摘要：

  研究了三烷基胺介导的戊-4-烯酰氯分子内环化。在 2 位用叔烷基取代可得到环戊-2-烯-1-酮，而用芳香基取代可得到烯醇酯，烯醇酯是由最初形成的 3-氯环戊酮与烯酮发生 O-酰化反应而形成的。

  DOI：

  10.1248/cpb.58.591

文献信息

• HCV PROTEASE INHIBITORS AND USES THEREOF
  申请人：Niu Deqiang

  公开号：US20090176858A1

  公开（公告）日：2009-07-09

  The present invention provides compounds, pharmaceutically acceptable compositions thereof, and methods of using the same.

  本发明提供了化合物、药学上可接受的组合物以及使用它们的方法。
• Silicon-DirectedNazarov Reactions II. Preparation and Cyclization of ?-Silyl-substituted Divinyl Ketones
  作者：Todd K. Jones、Scott E. Denmark

  DOI：10.1002/hlca.19830660802

  日期：1983.12.14

  Two general methods for the preparation of β-silyl-substituted divinyl ketones have been developed starting from either α, β-unsaturated aldehydes or simple ketones. Anhydrous FeCl3 induces the cyclization to cyclopentenones under mild conditions and in good yields with predictable and complete control over the position of the double bond in the five-membered ring. The observed effects of substituents

  从α，β-不饱和醛或简单的酮开始，已经开发了两种制备β-甲硅烷基取代的二乙烯基酮的通用方法。无水FeCl 3在温和条件下以高收率诱导环化成环戊烯酮，并且可预测和完全控制五元环中双键的位置。观察到的取代基对速率的影响可以通过速率决定性阳离子电环化来解释。已显示甲硅烷基取代会阻碍反应。
• 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。
• 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。
• 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。