2-酞酰亚胺基-3-甲基丁酸 | 6306-54-3

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 中文名称: 2-酞酰亚胺基-3-甲基丁酸
• 英文名称: N-phthaloyl L-valine
• 英文别名: (S)-2-(1,3-dioxoisoindolin-2-yl)-3-methylbutanoic acid；N-phthalyl-L-valine；(S)-N-phthaloylvaline；Pht-val-OH；(2S)-2-(1,3-dioxoisoindol-2-yl)-3-methylbutanoic acid
• CAS: 6306-54-3
• 化学式: C₁₃H₁₃NO₄
• mdl: MFCD00043587
• 分子量: 247.251
• InChiKey: UUIPGCXIZVZSEC-JTQLQIEISA-N

物化性质

• 熔点：
  114-115 °C
• 沸点：
  416.5±28.0 °C(Predicted)
• 密度：
  1.353±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.31
• 拓扑面积：
  74.7
• 氢给体数：
  1
• 氢受体数：
  4

安全信息

• 海关编码：
  2925190090
• 危险性防范说明：
  P261,P280,P301+P312,P302+P352,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335
• 储存条件：
  | 室温 |

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: Pht-Val-OH
Synonyms:

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Section 2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.

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Section 3. Composition/information on ingredients.
Ingredient name: Pht-Val-OH
CAS number: 6306-54-3

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Section 4. First aid measures
Skin contact: Immediately wash skin with copious amounts of water for at least 15 minutes while removing
contaminated clothing and shoes. If irritation persists, seek medical attention.
Eye contact: Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate
flushing of the eyes by separating the eyelids with fingers. If irritation persists, seek medical
attention.
Inhalation: Remove to fresh air. In severe cases or if symptoms persist, seek medical attention.
Ingestion: Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.

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Section 5. Fire fighting measures
In the event of a fire involving this material, alone or in combination with other materials, use dry
powder or carbon dioxide extinguishers. Protective clothing and self-contained breathing apparatus
should be worn.

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Section 6. Accidental release measures
Personal precautions: Wear suitable personal protective equipment which performs satisfactorily and meets local/state/national
standards.
Respiratory precaution: Wear approved mask/respirator
Hand precaution: Wear suitable gloves/gauntlets
Skin protection: Wear suitable protective clothing
Eye protection: Wear suitable eye protection
Methods for cleaning up: Mix with sand or similar inert absorbent material, sweep up and keep in a tightly closed container
for disposal. See section 12.
Environmental precautions: Do not allow material to enter drains or water courses.

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Section 7. Handling and storage
Handling: This product should be handled only by, or under the close supervision of, those properly qualified
in the handling and use of potentially hazardous chemicals, who should take into account the fire,
health and chemical hazard data given on this sheet.
Store in closed vessels.
Storage:

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Section 8. Exposure Controls / Personal protection
Engineering Controls: Use only in a chemical fume hood.
Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles.
General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse.

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Section 9. Physical and chemical properties
Appearance: Not specified
Boiling point: No data
No data
Melting point:
Flash point: No data
Density: No data
Molecular formula: C13H13NO4
Molecular weight: 247.2

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Section 10. Stability and reactivity
Conditions to avoid: Heat, flames and sparks.
Materials to avoid: Oxidizing agents.
Possible hazardous combustion products: Carbon monoxide, nitrogen oxides.

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Section 11. Toxicological information
No data.

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Section 12. Ecological information
No data.

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Section 13. Disposal consideration
Arrange disposal as special waste, by licensed disposal company, in consultation with local waste
disposal authority, in accordance with national and regional regulations.

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Section 14. Transportation information
Non-harzardous for air and ground transportation.

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Section 15. Regulatory information
No chemicals in this material are subject to the reporting requirements of SARA Title III, Section
302, or have known CAS numbers that exceed the threshold reporting levels established by SARA
Title III, Section 313.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  2-酞酰亚胺基-3-甲基丁酸 在 sodium nitrate 、 Selectfluor 作用下， 以 乙腈 为溶剂， 以65%的产率得到(R)-2-(1,3-dioxoisoindolin-2-yl)-3-fluoro-3-methylbutanoic acid,
  参考文献：
  名称：

  电化学 C(sp3)–H 氟化

  摘要：

  提出了一种简单而可靠的电化学烷基 C-H 氟化方法。使用简单的硝酸盐添加剂、广泛使用的氟源 (Selectfluor) 和碳基电极，各种活化和未活化的 C-H 键被转化为它们的 C-F 同系物。100 克氟缬氨酸制剂也证明了反应的可扩展性。

  DOI：

  10.1055/s-0037-1611737
• 作为产物：
  描述：

  邻苯二甲酰氯 在 N,N-二异丙基乙胺 作用下， 以 水 、 乙腈 为溶剂， 反应 1.0h， 生成 2-酞酰亚胺基-3-甲基丁酸
  参考文献：
  名称：

  环境自由基氧化剂NO 3 •对脂族氨基酸，二肽和三肽的氧化损伤：动力学和计算研究揭示酰胺键的作用

  摘要：

  动力学和计算数据表明，重要的环境自由基氧化剂NO 3 •在与脂肪族氨基酸以及二肽和三肽的反应中具有复杂的行为，这表明对肽主链中酰胺N–H键的攻击是高度可行的途径，这是通过质子耦合电子转移（PCET）机理进行的，在乙腈中的速率系数约为1×10 6 M –1 s –1。确定了类似的速率系数，用于确定侧链中α-碳和叔C–H键的夺氢作用。获得的NO 3 •反应速率系数带有脂族二肽和三肽的化合物表明，攻击在每个氨基酸残基的所有这些位点发生，这使得脂族肽序列极易受到NO 3 •诱导的氧化损伤的影响。NO 3 •与脂肪族肽中侧链的反应没有发现酰胺邻基效应的证据，酰胺邻基效应先前已发现可促进自由基诱导的苯丙氨酸侧链破坏。

  DOI：

  10.1021/acs.joc.8b03224

文献信息

• Enantioselection in peptide bond formation
  作者：Roger R. Hill、David Birch、Graham E. Jeffs、Michael North

  DOI：10.1039/b211914e

  日期：2003.3.13

  Selectivity in abiotic condensations of amino acids remains controversial and stereochemically little explored. We find that competitive activated couplings of N-acyl derivatives of glycine, alanine, valine, proline and phenylalanine with binary, ternary and quaternary mixtures of amides and esters of the same group of amino acids show little selectivity among the reactants, except with respect to configuration, where a consistent and significant preference for heterochiral outcomes, mostly >80%, is observed. One possible explanation of this selectivity predicts a predisposition to homochiral coupling under conditions that would require the two carboxyl functions to be co-facial in the activated complex.

  无机物促成的氨基酸缩聚反应中选择性仍然备受争议，而立体化学方面的研究甚少。我们发现，以酰胺和酯组成的双组分、三组分以及四组分混合物为底物，对甘氨酸、丙氨酸、缬氨酸、脯氨酸和苯丙氨酸的N-酰基衍生物进行竞争性活化偶联的反应中，产物在底物分子层面选择性较低，但对映异构选择性较高，选择性系数大多大于80%。此类反应中优先生成异手性产物的一种可能的解释是，在两个羧基必须共面的活化复合物中，同手性偶联具有倾向性。
• Cooperative Effects between Chiral Cp^x-Iridium(III) Catalysts and Chiral Carboxylic Acids in Enantioselective C−H Amidations of Phosphine Oxides
  作者：Yun-Suk Jang、Michael Dieckmann、Nicolai Cramer

  DOI：10.1002/anie.201708440

  日期：2017.11.20

  Catalytic handshake: A cooperative effect between a chiral CpxIrIII complex and chiral carboxylic acid enables highly enantioselective C−H amidations of phosphine oxides with up to 99:1 er. Matched–mismatched pairs have a strong influence on the reactivity and selectivity.

  催化握手：手性Cp x Ir III配合物与手性羧酸之间的协同作用可使膦氧化物的高对映选择性CH酰胺化反应的时间高达99：1 er。配对不匹配对对反应性和选择性有很大影响。
• Total Synthesis of the Bis-silyl Ether of (+)-15-<i>epi</i>-Aetheramide A
  作者：Omkar Revu、Kavirayani R. Prasad

  DOI：10.1021/acs.joc.6b02535

  日期：2017.1.6

  depsipeptide aetheramide A was attempted by three different approaches. The first approach to form the macrolactone involving macrolactonization to form the C1–C21 bond and the second approach using a ring-closing metathesis (RCM) strategy to form the C10–C11 olefinic bond failed. The third approach starting from R-mandelic acid, involving the RCM reaction to install the C18–C19 ring junction, was successful

  通过三种不同的方法尝试合成大内酯二肽醚醚酰胺A。形成大内酯的第一种方法涉及大内酯化以形成C1-C21键，第二种方法使用闭环易位（RCM）策略形成C10-C11烯烃键。第三种方法是从R-扁桃酸开始的，涉及RCM反应以安装C18-C19环键，成功地组装了大内酯。
• Trifluoroborane-Catalyzed C–H Functionalization/S–H Insertion Reaction: Construction of N,S-Acetal Quaternary Centers
  作者：Yan Cai、Haihong Ge、Weize Sun、Zhiwei Miao

  DOI：10.1055/s-0034-1380384

  日期：2015.6

  The trifluoroborane-catalyzed C–H functionalization/S–H insertion reaction of α-diazophosphonates with thiols has been developed. A plausible reaction mechanism has been proposed to understand the combined reaction. This process provides straightforward access to N,S-acetals containing quaternary centers in moderate to good yields and chemoselectivity.

  三氟硼烷催化的α-重氮磷酸酯与硫醇的C-H官能化/S-H插入反应已经被开发出来。已经提出了一个合理的反应机理来理解这个复合反应。这个过程以中等到良好的产率和化学选择性提供了直接访问含有季铵中心的N,S-缩醛。
• Chemoselective Electrosynthesis Using Rapid Alternating Polarity
  作者：Yu Kawamata、Kyohei Hayashi、Ethan Carlson、Shobin Shaji、Dirk Waldmann、Bryan J. Simmons、Jacob T. Edwards、Christoph W. Zapf、Masato Saito、Phil S. Baran

  DOI：10.1021/jacs.1c06572

  日期：2021.10.13

  in the selective manipulation of functional groups (chemoselectivity) in organic synthesis have historically been overcome either by using reagents/catalysts that tunably interact with a substrate or through modification to shield undesired sites of reactivity (protecting groups). Although electrochemistry offers precise redox control to achieve unique chemoselectivity, this approach often becomes challenging

  有机合成中选择性操纵官能团（化学选择性）的挑战历来通过使用与底物可调节相互作用的试剂/催化剂或通过修饰以屏蔽不需要的反应位点（保护基团）来克服。尽管电化学提供了精确的氧化还原控制以实现独特的化学选择性，但在存在多种氧化还原活性功能的情况下，这种方法通常变得具有挑战性。从历史上看，电合成几乎完全使用直流电（DC）进行。相比之下，众所周知，应用交流电 (AC) 可以在分析规模上显着改变反应结果，但很少被战略性地用于复杂的制备有机合成。在这里，我们展示了如何使用方波来传递电流——快速交替极性（rAP）——能够控制羰基化合物化学选择性还原中的反应结果，这是最广泛使用的反应流形之一。观察到的反应性不能使用直流电解或化学试剂来重现。这种控制化学选择性的新方法所带来的合成价值在手性辅助去除等经典反应问题和PROTAC合成等前沿药物化学主题的背景下得到了生动的体现。

表征谱图