3-heptyl-2,4-pentanedione | 56525-44-1

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 3-heptyl-2,4-pentanedione
• 英文别名: 3-heptyl-pentane-2,4-dione；3-Heptyl-pentan-2,4-dion；3-Heptylpentane-2,4-dione
• CAS: 56525-44-1
• 化学式: C₁₂H₂₂O₂
• 分子量: 198.305
• InChiKey: ZTYNZEZHTLPXRT-UHFFFAOYSA-N

物化性质

• 沸点：
  134-136 °C(Press: 16 Torr)
• 密度：
  0.896±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  14
• 可旋转键数：
  8
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.83
• 拓扑面积：
  34.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3-heptyl-2,4-pentanedione 在 乙酸酐 、 溶剂黄146 、 锌 作用下， 生成 benzyl 5-(acetoxymethyl)-4-heptyl-3-methyl-1H-pyrrole-2-carboxylate
  参考文献：
  名称：

  使用烯烃复分解的大环卟啉四聚体的模板定向组装

  摘要：

  使用 5,10,15,20-四吡啶基卟啉模板，通过烯烃复分解以 52% 的收率制备大环卟啉四聚体。

  DOI：

  10.1071/ch05262
• 作为产物：
  描述：

  庚醛 在 哌啶 、 甲醇 、 palladium on activated charcoal 、 乙醇 作用下， 生成 3-heptyl-2,4-pentanedione
  参考文献：
  名称：

  Lateral Stability During Forward-Induced Stepping for Dynamic Balance Recovery in Young and Older Adults

  摘要：

  Background. Balance dysfunction related to lateral instability has been associated with falls and fall-related injuries among older individuals. Protective stepping for dynamic balance recovery requires the effective control of lateral body motion, This study investigated the relationship between aging, falls, and lateral stability during forward-induced stepping for dynamic balance recovery.Methods. Forward steps were induced by a motor-driven waist-pull system in 12 younger adults, 20 healthy community-dwelling older adult nonfallers, and IS older adults who had reported falls. Group differences in kinetic and kinematic stepping characteristics for a range of Postural disturbance magnitudes were evaluated.Results. Despite group similarities in anticipatory postural adjustments for minimizing lateral instability, the older fallers demonstrated significantly greater sideways body motion toward the stepping side at first-step foot contact and a more laterally directed foot placement. During the first step, forward-stepping characteristics were generally comparable between the groups, but the older falters had an earlier liftoff time and longer step duration.Conclusions. During forward-induced protective stepping, otherwise healthy older adults who had experienced falls showed particular differences in their control of lateral body motion that were not attributable to changes in anticipatory postural mechanisms. Aging changes in controlling lateral body motion during protective stepping appear to involve factors that intervene between the first-step liftoff and foot contact and/or adaptations in stepping patterns related to prior planning.

  DOI：

  10.1093/gerona/56.9.m589

文献信息

• Highly Efficient Aggregation-Induced Room-Temperature Phosphorescence with Extremely Large Stokes Shift Emitted from Trinuclear Gold(I) Complex Crystals
  作者：Osamu Tsutsumi、Masakazu Tamaru、Hitoya Nakasato、Shingo Shimai、Supattra Panthai、Yuki Kuroda、Kenta Yamaguchi、Kaori Fujisawa、Kyohei Hisano

  DOI：10.3390/molecules24244606

  日期：——

  Highly efficient (≈75% quantum yield), aggregation-induced phosphorescence is reported. The phosphorescence is emitted at room temperature and in the presence of air from crystals of trinuclear Au(I) complexes, accompanied by an extremely large Stokes shift of 2.2 × 104 cm−1 (450 nm). The mechanism of the aggregation-induced room-temperature phosphorescence from the Au complex crystals was investigated in terms of the crystal packing structure and the primary structure of the molecules. It was found that two kinds of intermolecular interactions occurred in the crystals, and that these multiple dual-mode intermolecular interactions in the crystals play a crucial role in the in-air room-temperature phosphorescence of the trinuclear Au(I) complexes.

  报道了高效率（≈75% 量子产率）的聚集诱导磷光。磷光在室温下并且在空气存在的情况下从三核金(I)配合物晶体中发射，伴随着极大的斯托克斯位移为2.2 × 104 cm−1（450 nm）。通过对金配合物晶体的聚集诱导室温磷光机制进行了研究，涉及晶体堆积结构和分子的初级结构。发现晶体中发生了两种类型的分子间相互作用，并且这些晶体中的多重双模式分子间相互作用在三核金(I)配合物的空气存在的室温磷光中起着至关重要的作用。
• Ogura, Katsuyuki; Sanada, Kunio; Takahashi, Kazumasa, Phosphorus and Sulfur and the Related Elements, 1983, vol. 16, p. 83 - 88
  作者：Ogura, Katsuyuki、Sanada, Kunio、Takahashi, Kazumasa、Iida, Hirotada

  DOI：——

  日期：——
• OGURA, KATSUYUKI;SANADA, KUNIO;TAKAHASHI, KAZUMASA;IIDA, HIROTADA, PHASPH. AND SULFUR, 1983, 16, N 1-2, 83-87
  作者：OGURA, KATSUYUKI、SANADA, KUNIO、TAKAHASHI, KAZUMASA、IIDA, HIROTADA

  DOI：——

  日期：——
• Lateral Stability During Forward-Induced Stepping for Dynamic Balance Recovery in Young and Older Adults
  作者：M. W. Rogers、L. D. Hedman、M. E. Johnson、T. D. Cain、T. A. Hanke

  DOI：10.1093/gerona/56.9.m589

  日期：2001.9.1

  Background. Balance dysfunction related to lateral instability has been associated with falls and fall-related injuries among older individuals. Protective stepping for dynamic balance recovery requires the effective control of lateral body motion, This study investigated the relationship between aging, falls, and lateral stability during forward-induced stepping for dynamic balance recovery.Methods. Forward steps were induced by a motor-driven waist-pull system in 12 younger adults, 20 healthy community-dwelling older adult nonfallers, and IS older adults who had reported falls. Group differences in kinetic and kinematic stepping characteristics for a range of Postural disturbance magnitudes were evaluated.Results. Despite group similarities in anticipatory postural adjustments for minimizing lateral instability, the older fallers demonstrated significantly greater sideways body motion toward the stepping side at first-step foot contact and a more laterally directed foot placement. During the first step, forward-stepping characteristics were generally comparable between the groups, but the older falters had an earlier liftoff time and longer step duration.Conclusions. During forward-induced protective stepping, otherwise healthy older adults who had experienced falls showed particular differences in their control of lateral body motion that were not attributable to changes in anticipatory postural mechanisms. Aging changes in controlling lateral body motion during protective stepping appear to involve factors that intervene between the first-step liftoff and foot contact and/or adaptations in stepping patterns related to prior planning.
• Template-Directed Assembly of a Macrocyclic Porphyrin Tetramer Using Olefin Metathesis
  作者：Jacinta M. Bakker、Steven J. Langford、Melissa J. Latter、Katrina A. Lee、Clint P. Woodward

  DOI：10.1071/ch05262

  日期：——

  A macrocyclic porphyrin tetramer was prepared in 52% yield by olefin metathesis employing a 5,10,15,20-tetrapyridylporphyrin template.

  使用 5,10,15,20-四吡啶基卟啉模板，通过烯烃复分解以 52% 的收率制备大环卟啉四聚体。