(S)-(-)-2-甲基丁胺盐酸盐 | 129539-82-8

• 分子结构分类: 有机化合物 - 有机氮化合物
• 中文名称: (S)-(-)-2-甲基丁胺盐酸盐
• 中文别名: (S)-2-甲基丁-1-胺盐酸盐
• 英文名称: (S)-2-methylbutan-1-amine hydrochloride
• 英文别名: (2S)-2-methylbutan-1-amine;hydrochloride
• CAS: 129539-82-8
• 化学式: C₅H₁₃N*ClH
• 分子量: 123.626
• InChiKey: AFKKTHZFBOANFY-JEDNCBNOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.41
• 重原子数：
  7
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  26
• 氢给体数：
  2
• 氢受体数：
  1

安全信息

• 危险性防范说明：
  P264,P280,P302+P352,P337+P313,P305+P351+P338,P362+P364,P332+P313
• 危险性描述：
  H315,H319

反应信息

• 作为反应物：
  描述：

  (S)-(-)-2-甲基丁胺盐酸盐 在 氢氧化钾 作用下， 以69%的产率得到(S)-(-)-2-甲基丁胺
  参考文献：
  名称：

  Anteunis, M. J. O.; Callens, R.; Witte, M. De, Bulletin des Societes Chimiques Belges, 1987, vol. 96, # 7, p. 545 - 554

  摘要：

  DOI：
• 作为产物：
  描述：

  tert-butyl (S)-(2-methylbutyl)carbamate 在 盐酸 作用下， 以 水 为溶剂， 反应 3.0h， 以79%的产率得到(S)-(-)-2-甲基丁胺盐酸盐
  参考文献：
  名称：

  吡啶鎓阴离子开环反应应用于胡椒科天然产物的立体发散合成。

  摘要：

  已经设计了一种立体发散策略来获取在胡椒科的生物活性化合物中发现的二烯基序。本文叙述了2 E ,4 E构型的哌醋甲酰胺E ( 2 ) 及其对映异构体( ent - 2 ) 以及2 E ,4 Z构型的山莨菪碱B ( 3 ) 的首次全合成。采用的方法的主要支柱是在实际的三步序列中对季铵化吡啶进行克级转化，以获得异构纯的共轭溴二烯酯 2 E ,4 E 8和 2 E ,4 Z 9通过差示结晶。尽管开发的氧化方案构成了所需发散策略的基础，但所涉及的溴二烯基元的几何完整性可以通过溶剂的选择来控制。因此，虽然纯溴二烯醛 2 E ,4 Z 7在甲醇中的氧化产生等量的溴二烯酯 2 E ,4 E 8和 2 E ,4 Z 9，但只有溴二烯酯 2 E ,4 Z 10在异丙醇中形成。随后，利用立体保留的 Suzuki 交叉偶联和相应酯的直接酰胺化，可以分别通过五步和六步获得特色天然产物。Curtius 重排促进了已分配给哌醋甲酯

  DOI：

  10.1039/d0ob01745k

文献信息

• Manganese‐Catalyzed Hydroborations with Broad Scope
  作者：Pradip Ghosh、Axel Jacobi von Wangelin

  DOI：10.1002/anie.202103550

  日期：2021.7.12

  synthetic manipulation and chemical valorization. The applications of catalytic hydrofunctionalization benefit from the use of liquid reducing agents and operationally facile setups. Metal-catalyzed hydroborations provide a highly prolific platform for reductive valorizations of stable C=X electrophiles. Here, we report an especially facile, broad-scope reduction of various functions including carbonyls

  容易获得的氧化物质的还原转化是合成操作和化学价值化的核心。催化加氢官能化的应用受益于液体还原剂的使用和操作简便的设置。金属催化的硼氢化反应为稳定的 C=X 亲电试剂的还原增值提供了一个高产的平台。在这里，我们报告了在非常温和的条件下，使用廉价的预催化剂 Mn(hmds) 2可以特别轻松、广泛地还原各种功能，包括羰基化合物、羧酸盐、吡啶、碳二亚胺和碳酸盐。该反应可以成功地应用于解聚。
• Influence of Neighboring Groups on the Thermodynamics of Hydrophobic Binding: An Added Complex Facet to the Hydrophobic Effect
  作者：Nader N. Nasief、David Hangauer

  DOI：10.1021/jm401609a

  日期：2014.3.27

  proentropic in others. A remarkable enthalpy–entropy compensation relationship was also observed, reflecting the fact that the hydrophobic effect is governed by the thermodynamic status of the associated aqueous environment. This study could improve our understanding of the hydrophobic effect and may enhance our ability to design potent ligands that are capable of modulating biological processes.

  使用等温滴定量热法（ITC）对在浅疏水口袋中结合的配体侧链进行系统修饰的热力学后果进行了评估，无论是否存在相邻的配体羧酸酯基团。数据显示，羧酸盐可能会通过改变未结合状态和结合状态下水合水的H键/组织状态来显着改变这些修饰的相对热力学特征。发现该羧酸酯基团在某些情况下是前焓的，对熵的，而在另一些情况下是反焓的，对熵的。还观察到了显着的焓-熵补偿关系，这反映了疏水作用受相关水环境的热力学状态支配的事实。
• Rapid Conventional and Microwave-Assisted Decarboxylation of L-Histidine and Other Amino Acids via Organocatalysis with R-Carvone Under Superheated Conditions
  作者：Douglas M. Jackson、Robert L. Ashley、Callan B. Brownfield、Daniel R. Morrison、Richard W. Morrison

  DOI：10.1080/00397911.2015.1100745

  日期：2015.12.2

  This article reports a new methodology taking advantage of superheated chemistry via either microwave or conventional heating for the facile decarboxylation of alpha amino acids using the recoverable organocatalyst, R-carvone. The decarboxylation of amino acids is an important synthetic route to biologically active amines, and traditional methods of amino acid decarboxylation are time consuming (taking up to several days in the case of L-histidine), are narrow in scope, and make use of toxic catalysts. Decarboxylations of amino acids including L-histidine occur in just minutes while replacing toxic catalysts with green catalyst, spearmint oil. Yields are comparable to or exceed previous methods and purification of product ammonium chloride salts is aided by an isomerization reaction of residual catalyst to phenolic carvacrol. The method has been shown to be effective for the decarboxylations of a range of natural, synthetic, and protected amino acids.
• Chemoselective Intramolecular Functionalization of Methyl Groups in Nonconstrained Molecules Promoted by <i>N</i>-Iodosulfonamides
  作者：Nieves R. Paz、Dionisio Rodríguez-Sosa、Haydee Valdés、Ricardo Marticorena、Daniel Melián、M. Belén Copano、Concepción C. González、Antonio J. Herrera

  DOI：10.1021/acs.orglett.5b00866

  日期：2015.5.15

  Mechanistic evidence observed in Hofmann-Loffler-Freytag-type reactions has been crucial to achieve the chemoselective functionalization of methyl groups under mild conditions. Radical-mediated methyl iodination and subsequent oxidative deiodination are the key steps in this functionalization, where iodine chemistry has a pivotal role on the formation of the C-N bond. The concepts of single hydrogen atom transfer (SHAT) and multiple hydrogen atom transfer (MHAT) are introduced to describe the observed chemoselectivity.