(E)-2-pent-1-enyl-2-cyclopentenone | 87506-07-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (E)-2-pent-1-enyl-2-cyclopentenone
• 英文别名: 2-[(1E)-1-pentenyl]-2-cyclopenten-1-one；2-[(E)-pent-1-enyl]cyclopent-2-en-1-one
• CAS: 87506-07-8
• 化学式: C₁₀H₁₄O
• 分子量: 150.221
• InChiKey: MTFJBXKIZCTRSC-GQCTYLIASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  11
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 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：

  (E)-2-pent-1-enyl-2-cyclopentenone 在 pyridinium chlorochromate 作用下， 以 乙醚 、 二氯甲烷 为溶剂， 生成 3-methyl-2-(trans-1-pentenyl)-2-cyclopenten-1-one
  参考文献：
  名称：

  Unusual endoperoxide isomerizations: a convenient entry into 2-vinyl-2-cyclopentenones from saturated fulvene endoperoxides

  摘要：

  An unusual peroxide base-promoted isomerization is uncovered. Saturated endoperoxides derived from fulvenes give rise to 2-vinyl-2-cyclopentenones upon treatment with DBU in CH2CL2 in a one-pot reaction. This methodology is applied to a convenient synthesis of dihydrojasmone. Moreover, functional groups placed on the side chain at C-6 participate in the base-catalyzed isomerizations via conjugate attack at the enone moiety to give 2-cyclopentenones carrying oxygen heterocycles at C-2. (c) 2006 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2006.07.107
• 作为产物：
  描述：

  5-pentylidene-1,3-cyclopentadiene 在 5,10,15,20-tetrakisphenylporphyrin 、 氧气 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 二氯甲烷 为溶剂， 反应 3.0h， 生成 (E)-2-pent-1-enyl-2-cyclopentenone
  参考文献：
  名称：

  Unusual endoperoxide isomerizations: a convenient entry into 2-vinyl-2-cyclopentenones from saturated fulvene endoperoxides

  摘要：

  An unusual peroxide base-promoted isomerization is uncovered. Saturated endoperoxides derived from fulvenes give rise to 2-vinyl-2-cyclopentenones upon treatment with DBU in CH2CL2 in a one-pot reaction. This methodology is applied to a convenient synthesis of dihydrojasmone. Moreover, functional groups placed on the side chain at C-6 participate in the base-catalyzed isomerizations via conjugate attack at the enone moiety to give 2-cyclopentenones carrying oxygen heterocycles at C-2. (c) 2006 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2006.07.107

文献信息

• [EN] DEGRADATION ACCELERATOR FOR POLYMERS AND POLYMER ARTICLE COMPRISING IT<br/>[FR] ACCÉLÉRATEUR DE DÉGRADATION POUR DES POLYMÈRES ET ARTICLE POLYMÈRE LE COMPRENANT
  申请人：CIBA HOLDING INC

  公开号：WO2009016083A1

  公开（公告）日：2009-02-05

  Disclosed are a method for improving the degradation of natural and/or synthetic polymers or a polymer article made from such polymer(s) by light and/or heat and/or humidity, comprising the incorporation of a compound of formula (I) into said natural and/or synthetic polymers: Formula (I); wherein m is 1 or 2, n is 1 to 100, X is selected from certain benzophenone-derived moieties and R, R1; R2 are each selected from list of certain residues; novel compounds of said formula (I) and polymeric articles of improved degradability in the presence of light and/or heat and/or humidity being made of a composition comprising: A) a natural and/or a synthetic polymer and B) a degradation accelerator being a compound of said formula (I).

  公开了一种改善天然和/或合成聚合物或由这些聚合物制成的聚合物制品在光线和/或热量和/或湿度作用下降解的方法，包括将式(I)的化合物并入所述天然和/或合成聚合物中：式(I)；其中m为1或2，n为1至100，X从特定苯基酮衍生物中选择，R，R1，R2分别从特定残基列表中选择；所述式(I)的新化合物和在存在光线和/或热量和/或湿度时具有改善降解性能的聚合物制品由包括以下成分的组合物制成：A) 天然和/或合成聚合物和B) 一种降解加速剂，该加速剂是所述式(I)的化合物。
• Ring expansion of succinoin derivatives. New synthetic routes to cyclopentenones
  作者：Eiichi Nakamura、Jun-ichi Shimada、Isao Kuwajima

  DOI：10.1039/c39830000498

  日期：——

  Acid-catalysed ring expansion reactions of cyclobutane derivatives bearing a vicinal substituted-diol group give α-aryl and α-vinyl substituted cyclopentenones in good yields.

  带有邻位取代的二醇基团的环丁烷衍生物的酸催化的扩环反应以良好的产率得到α-芳基和α-乙烯基取代的环戊烯酮。
• NAKAMURA, EIICHI;SHIMADA, JUN-ICHI;KUWAJIMA, ISAO, J. CHEM. SOC. CHEM. COMMUN., 1983, N 9, 498-499
  作者：NAKAMURA, EIICHI、SHIMADA, JUN-ICHI、KUWAJIMA, ISAO

  DOI：——

  日期：——
• Process for producing alpha,beta-unsaturated ketones
  申请人：NIPPON ZEON CO., LTD.

  公开号：EP0133548B1

  公开（公告）日：1987-04-22
• ADDITIVE MIXTURES FOR AGRICULTURAL ARTICLES
  申请人：CIBA SPECIALTY CHEMICALS HOLDING INC. Patent Departement

  公开号：EP1866367A2

  公开（公告）日：2007-12-19