5-(1-cyclopentenyl)pentanoic acid | 20098-08-2

• 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: 5-(1-cyclopentenyl)pentanoic acid
• 英文别名: 5-(1-cyclopentenyl)valeric acid；5-Cyclopent-1-enyl-valeriansaeure；5-cyclopent-1-enyl-valeric acid；5-(Cyclopenten-1-yl)pentanoic acid
• CAS: 20098-08-2
• 化学式: C₁₀H₁₆O₂
• 分子量: 168.236
• InChiKey: IDPGFKABVQKXKJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  12
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.7
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  5-(1-cyclopentenyl)pentanoic acid 在 sodium hydroxide 、 potassium permanganate 作用下， 生成 5-oxo-decanedioic acid
  参考文献：
  名称：

  Northwest Africa 032: Product of lunar volcanism

  摘要：

  Abstract— Mineralogy, major element compositions of minerals, and elemental and oxygen isotopic compositions of the whole rock attest to a lunar origin of the meteorite Northwest Africa (NWA) 032, an unbrecciated basalt found in October 1999. The rock consists predominantly of olivine, pyroxene and chromite phenocrysts, set in a crystalline groundmass of feldspar, pyroxene, ilmenite, troilite and trace metal. Whole‐rock shock veins comprise a minor, but ubiquitous portion of the rock. Undulatory to mosaic extinction in olivine and pyroxene phenocrysts and micro‐faults in groundmass and phenocrysts also are attributed to shock.Several geochemical signatures taken together indicate unambiguously that NWA 032 originated from the Moon. The most diagnostic criteria include whole‐rock oxygen isotopic composition and ratios of Fe/Mn in the whole rock, olivine, and pyroxene. A lunar origin is documented further by the presence of Fe‐metal, troilite, and ilmenite; zoning to extremely Fe‐rich compositions in pyroxene; the ferrous oxidation state of all Fe in pyroxene; and the rare earth element (REE) pattern with a well‐defined negative europium anomaly. This rock is similar in major element chemistry to basalts from Apollo 12 and 15, but is enriched in light REE and has an unusually high Th/Sm ratio. Some Apollo 14 basalts yield a closer match to NWA 032 in REE patterns, but have higher concentrations of Al2O3. Ar‐Ar step release results are complex, but yield a whole‐rock age of ˜2.8 Ga, suggesting that NWA 032 was extruded at 2.8 Ga or earlier. This rock may be the youngest sample of mare basalt collected to date. Noble gas concentrations combined with previously collected radionuclide data indicate that the meteorite exposure history is distinct from currently recognized lunar meteorites. In short, the geochemical and petrographic features of NWA 032 are not matched by Apollo or Luna samples, nor by previously identified lunar meteorites, indicating that it originates from a previously unsampled mare deposit.Detailed assessment of petrographic features, olivine zoning, and thermodynamic modelling indicate a relatively simple cooling and crystallization history for NWA 032. Chromite‐spinel, olivine, and pyroxene crystallized as phenocrysts while the magma cooled no faster than 2 °C/h based on the polyhedral morphology of olivine. Comparison of olivine size with crystal growth rates and preserved Fe‐Mg diffusion profiles in olivine phenocrysts suggest that olivine was immersed in the melt for no more than 40 days. Plumose textures in groundmass pyroxene, feldspar, and ilmenite, and Fe‐rich rims on the phenocrysts formed during rapid crystallization (cooling rates ˜20 to 60 °C/h) after eruption.

  DOI：

  10.1111/j.1945-5100.2002.tb00822.x
• 作为产物：
  描述：

  5-cyclopent-1-enyl-valeric acid ethyl ester 在 氢氧化钾 作用下， 生成 5-(1-cyclopentenyl)pentanoic acid
  参考文献：
  名称：

  151.尝试制备新的芳族体系。第二部分 庚烯

  摘要：

  DOI：

  10.1039/jr9500000743

文献信息

• 一种5-（1-环戊烯基）戊酸的制备方法
  申请人：浙江医药股份有限公司

  公开号：CN118063308A

  公开（公告）日：2024-05-24

  本申请提供一种5‑（1‑环戊烯基）戊酸的制备方法，属于杂环化合物技术领域。以1,4‑二氯丁烷为原料，在室温下与镁粉反应形成双格式试剂，通入二氧化碳气体，发生分子间亲核加成反应、分子内亲核取代/环化反应形成环戊烷中间体；再在酸性体系中，经质子化、脱羟基化过程得到5‑（1‑环戊烯基）戊酸。上述方案先添加镁粉与二氯丁烷形成双格氏试剂，再通入二氧化碳反应得到环戊烷中间体，最后在酸性体系中脱羟基化得到5‑（1‑环戊烯基）戊酸，该过程具有反应周期短、反应收率高等优点。
• 797. High-temperature (300—350°) reactions of cyclopentanone and some of its derivatives with ammonia and aliphatic amines
  作者：O. B. Edgar、David H. Johnson

  DOI：10.1039/jr9580003925

  日期：——
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