2-甲基-2-丙基戊酸 | 31113-56-1

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 中文名称: 2-甲基-2-丙基戊酸
• 英文名称: 2-methyl-2-propylpentanoic acid
• 英文别名: 2-methyl-2-propyl-valeric acid；2-Methyl-2-propyl-valeriansaeure；2-propyl-2-methyl-pentanoic acid；2-Methyl-2-n-propylvaleriansaeure；2-Methyl-2-propylpentansaeure；4-Methylheptan-4-carbonsaeure
• CAS: 31113-56-1
• 化学式: C₉H₁₈O₂
• 分子量: 158.241
• InChiKey: KTHXOYWHJBTQNC-UHFFFAOYSA-N

物化性质

• 熔点：
  43-44 °C
• 沸点：
  118-122 °C
• 密度：
  0.921±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  11
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.89
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

安全信息

• 海关编码：
  2915900090

反应信息

• 作为反应物：
  描述：

  2-甲基-2-丙基戊酸 在 氯化亚砜 、 三乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 9.0h， 生成 2-methyl-2-propyl-N-(2-(pyridin-2-yl)propan-2-yl)pentanamide
  参考文献：
  名称：

  通过钯催化未活化的C（sp 3）–H键从酰胺中合成恶唑啉

  摘要：

  已经描述了一种补充方法，该方法能够通过Pd催化的C（sp 3）–H功能化从酰胺快速合成恶唑啉。初步研究表明，该反应可能会经历氯化/亲核环化序列，并且该序列的高效性通过氯化中间体的原位环化捕获得到增强。可以将所得的恶唑啉不经色谱进一步转化为相应的β-氨基醇。

  DOI：

  10.1021/acs.orglett.5b00151
• 作为产物：
  描述：

  丙戊酸 在 lithium diisopropyl amide 作用下， 以 四氢呋喃 为溶剂， 反应 2.0h， 生成 2-甲基-2-丙基戊酸
  参考文献：
  名称：

  Further Branching of Valproate-Related Carboxylic Acids Reduces the Teratogenic Activity, but Not the Anticonvulsant Effect

  摘要：

  In the present study, compounds derived from the anticonvulsant drug valproic acid (VPA, 2-n-propylpentanoic acid) and analogues known to be teratogenic were synthesized with an additional carbon-branching in one of the side chains. The substances were tested for their ability to induce anticonvulsant-activity and sedation in adult mice, and neural tube defects (exencephaly) in the offspring of pregnant animals (Han:NMRI mice). In all cases, the rates of exencephaly, embryolethality, and fetal weight retardation induced by the methyl-branched derivatives were very low when compared to those of the parent compounds, These novel compounds exhibited anticonvulsant activity which was not significantly different from that of VPA. Neurotoxicity was considerably lower for some compounds as compared to VPA. Anticonvulsant activity and neurotoxicity of branched short chain fatty acids are far less structure-dependent and not related to teratogenic potency. Within this series of compounds, (+/-)-4-methyl-2-n-propyl-4-pentenoic acid and (+/-)-2-isobutyl-4-pentenoic acid exhibited the most favorable profile in regard to high anticonvulsant effect, low sedation, and teratogenicity. Valproic acid analogues with additional methyl branching may be valuable antiepileptic agents with low teratogenic potential.

  DOI：

  10.1021/tx950216s

文献信息

• Diaryldiazepine Prodrugs for the Treatment of Neurological and Psychological Disorders
  申请人：Remenar Julius F.

  公开号：US20110166128A1

  公开（公告）日：2011-07-07

  The present invention provides prodrug compounds of diaryldiazepine drug compounds.

  本发明提供了二苯并二氮杂苯类药物化合物的前药化合物。
• Copper-Catalyzed Site-Selective Intramolecular Amidation of Unactivated C(sp³)H Bonds
  作者：Xuesong Wu、Yan Zhao、Guangwu Zhang、Haibo Ge

  DOI：10.1002/anie.201311263

  日期：2014.4.1

  of aliphatic amides, directed by a bidentate ligand, was developed using a copper‐catalyzed sp3 CH bond functionalization process. The reaction favors predominantly the CH bonds of β‐methyl groups over the unactivated methylene CH bonds. Moreover, a preference for activating sp3 CH bonds of β‐methyl groups, via a five‐membered ring intermediate, over the aromatic sp2 CH bonds was also observed in

  脂肪族酰胺的分子内酰胺化脱氢，由双齿配体定向，使用铜-催化的SP被开发3 Ç  H键官能化方法。该反应有利于主要的C  β甲基团与未活化的亚甲基] C H键 H键。此外，用于激活SP的偏好3 Ç  β甲基基团的H键，经由五元环中间，在所述芳族SP 2个ç  H键在环金属化步骤中也观察到。此外，SP 3个Ç 未活化二次属的H键3 Ç 通过使环碳原子优先于线性碳原子，可以使H键官能化。
• Auf das Zentralnervensystem wirkende Substanzen XXV. Reaktionen der ?-substituierten ?-Lactone II. Eine neue allgemeine Synthese ?-substituierter Propions�uren und deren Derivate
  作者：Bruno J. R. Nicolaus、Luigi Mariani、Emilio Testa

  DOI：10.1002/hlca.19610440427

  日期：——

  Hydrochloric acid and hydrobromic acid react with α-mono- and α, α-disubstituted β-lactones under ring cleavage leading unequivocally to the corresponding α-mono- or α, α-disubstituted β-halogenopropionic acids. These products are interesting starting materials for the preparation of new compounds and can be reduced by zinc and formic acid to the corresponding propionic acids. The described synthesis

  盐酸和氢溴酸在环裂解下与α-单-和α，α-二取代的β-内酯反应，明确导致相应的α-单-或α，α-二取代的β-卤代丙酸。这些产品是制备新化合物的有趣原料，可以通过锌和甲酸还原为相应的丙酸。所描述的合成是一般的合成并且可以高收率进行。此外，已经观察到，新的α，α-二取代的β-卤代丙酸可以通过碱的作用或在中性或弱酸性介质中通过锌的作用而被转化为β-丙内酯。
• Influence of structure and chemistry on piezoelectric properties of lead zirconate titanate in a microelectromechanical systems power generation application
  作者：L. M. R. Eakins、B. W. Olson、C. D. Richards、R. F. Richards、D. F. Bahr

  DOI：10.1557/jmr.2003.0292

  日期：2003.9

  Lead zirconate titanate (PZT) films between 1 and 3 μm thick were grown using solution deposition techniques to study the effects of crystal structure and orientation on the direct piezoelectric output of these films on platinized Si membranes. By varying the chemistry of the film from Zr-rich to Ti-rich, the 100}/(111) relative intensity increased for films grown on randomly oriented Pt films. The 40:60 PZT had a tetragonal crystal structure and produced greater electrical output at a given strain than the rhombohedral film (Zr:Ti concentrations less than 50:50), while having a similar e₃₁ constant, between 4.8 and 6.3 C/m². Orientation and voltage output at a given strain were not strongly influenced by thickness in the ranges investigated. Defects in internal PZT/PZT crystallization interfaces were identified and include porosity on the order of tens of nm, with a corresponding depletion in Pb and accumulation of O at these interfaces. The 100} texture of rhombohedral films deposited upon (111) textured Pt films is significantly greater than the 100} texture of tetragonal films, which show both a 100} and 111} orientation on the same Pt film.

  利用溶液沉积技术生长了厚度为 1 至 3 μm 的锆钛酸铅（PZT）薄膜，以研究晶体结构和取向对这些薄膜在铂化硅膜上的直接压电输出的影响。通过改变薄膜的化学性质（从富含 Zr 到富含 Ti），在随机取向的铂薄膜上生长的薄膜的 100}/(111) 相对强度增加了。40:60 PZT 具有四方晶体结构，在给定应变下比斜方体薄膜（Zr:Ti 浓度低于 50:50）产生更大的电输出，同时具有相似的 e31 常量，介于 4.8 和 6.3 C/m2 之间。在所研究的范围内，厚度对给定应变下的方向和电压输出影响不大。在 PZT/PZT 内部结晶界面上发现了缺陷，包括数十纳米量级的孔隙率，以及在这些界面上相应的铅耗竭和 O 积累。沉积在(111)纹理铂薄膜上的斜方体薄膜的100}纹理明显大于四方薄膜的100}纹理，后者在同一铂薄膜上同时显示出100}和111}取向。
• Nickel-catalyzed direct thiolation of unactivated C(sp³)–H bonds with disulfides
  作者：Sheng-Yi Yan、Yue-Jin Liu、Bin Liu、Yan-Hua Liu、Zhuo-Zhuo Zhang、Bing-Feng Shi

  DOI：10.1039/c5cc01436k

  日期：——

  The first nickel-catalyzed thiolation of unactivated C(sp3)-H bonds with disulfides is described.

  描述了未活化的C（sp 3）-H键与二硫键的首次镍催化的巯基化反应。