2-己烯酸甲酯 | 2396-77-2

• 物质功能分类: 香精与香料 - 合成香料 - 羧酸及酯类香料
• 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-己烯酸甲酯
• 中文别名: 反-2-己烯酸甲酯
• 英文名称: methyl 2-hexenoate
• 英文别名: 2-Hexenoic acid, methyl ester；methyl hex-2-enoate
• CAS: 2396-77-2
• 化学式: C₇H₁₂O₂
• 分子量: 128.171
• InChiKey: GFUGBRNILVVWIE-UHFFFAOYSA-N

物化性质

• 熔点：
  32 °C
• 沸点：
  56-58 °C(Press: 13 Torr)
• 密度：
  0.907±0.06 g/cm3(Predicted)
• 溶解度：
  Very slightly soluble in water, soluble in alcohol and oils
• LogP：
  2.38
• 物理描述：
  Colourless mobile liquid; Fruity aroma
• 折光率：
  1.423-1.429

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  9
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

安全信息

• 包装等级：
  III
• 危险类别：
  3
• 危险性防范说明：
  P210,P280,P240,P303+P361+P353,P403+P235,P501
• 危险品运输编号：
  3272
• 危险性描述：
  H225
• 储存条件：
  室温且干燥环境中保存。

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: Methyl 2-hexenoate
Synonyms:

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Section 2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.
H226: Flammable liquid and vapour
P210: Keep away from heat/sparks/open flames/hot surfaces. No smoking
P280: Wear protective gloves/protective clothing/eye protection/face protection
P240: Ground/bond container and receiving equipment
P303+P361+P353: IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with
water/shower
P403+P235: Store in a well ventilated place. Keep cool

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Section 3. Composition/information on ingredients.
Ingredient name: Methyl 2-hexenoate
CAS number: 2396-77-2

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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.
Storage: Store in closed vessels, refrigerated.

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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
No data
Boiling point:
Melting point: No data
Flash point: No data
Density: No data
Molecular formula: C7H12O2
Molecular weight: 128.2

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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.

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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
UN Number: UN3272 Class: 3 Packing group: III
Proper shipping name: ESTERS, N.O.S. (Methyl 2-hexenoate)

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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

制备方法与用途

应用

2-己烯酸甲酯是一种有机中间体，具有果香和青香香气，并带有类似香蕉的香味。

用途

单一异构体的α-羟基-β-氨基酸是一些药物的重要砌块。它在紫杉醇及其类似物、乌苯美司的合成中以及多肽药物的筛选中均有广泛的应用。2-己烯酸甲酯可用于制备单一异构体的α-羟基-β-氨基酸。

食品添加剂最大允许使用量及标准

2-己烯酸甲酯作为食品用香料，用于配制香精时，各香料成分不得超过在GB 2760中的最大允许使用量和最大允许残留量。

反应信息

• 作为反应物：
  描述：

  2-己烯酸甲酯 在 cobalt acetylacetonate 盐酸 、 甲醇 、 叔丁基过氧化氢 、 氧气 、 sodium thiosulfate 作用下， 以 甲醇 、 异辛烷 、 水 、 1,2-二氯乙烷 为溶剂， 生成 3-羟基己酸甲酯
  参考文献：
  名称：

  An Efficient Method for the Direct Peroxygenation of Various Olefinic Compounds with Molecular Oxygen and Triethylsilane Catalyzed by a Cobalt(II) Complex

  摘要：

  一种使用双(1,3-二酮基)钴(II)配合物催化剂对各种烯烃化合物进行分子氧和三乙基硅烷(Et3SiH)直接过氧化的高效方法已被开发。根据上述方法，通过在室温下使用O2和Et3SiH与4-苯基-1-丁烯(1)反应，直接生成了1-苯基-3-三乙基硅氧基丁烷(2)。此外，苯乙烯(3)和丙烯酸乙酯(5a)也能顺利地进行过氧化反应，使用少量t-BuOOH作为引发剂，分别得到1-苯基-1-三乙基硅氧基乙烷(4)和乙基2-三乙基硅氧基丙酸酯(6a)。接着对6a进行脱硅基化反应，并将其产物乙基2-氢过氧化丙酸酯(8a)还原，以高产率获得了相应的醇，即乙醇酸乙酯(10a)。本过氧化反应的合成实用性通过从几种α,β-不饱和酯5a–e制备相应的三乙基硅氧基衍生物，进而合成α-羟基酯10a–e得到了展现。

  DOI：

  10.1246/bcsj.63.1305
• 作为产物：
  描述：

  反式-2-己烯酸 在 草酰氯 、 甲醇 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 为溶剂， 反应 2.5h， 以100%的产率得到2-己烯酸甲酯
  参考文献：
  名称：

  [EN] PROTON PUMP INHIBITORS
  [FR] INHIBITEURS DE POMPE A PROTONS

  摘要：

  质子泵抑制剂具有优异的质子泵活性，可以在体内转化为质子泵抑制剂，表现出抗溃疡作用等，包含由通式（I）表示的化合物或其盐或类似物：（I）其中X和Y分别是自由价或其主链具有1至20个碳原子的间隔物；R1是可选择地取代的碳氢基团或可选择地取代的杂环基团；R2、R3和R4分别是氢、可选择地取代的碳氢基团、可选择地取代的噻吩基、可选择地取代的苯并[b]噻吩基、可选择地取代的呋喃基、可选择地取代的吡啶基、可选择地取代的吡唑基、可选择地取代的嘧啶基、酰基、卤素、氰基或硝基；R5和R6分别是氢或可选择地取代的碳氢基团。

  公开号：

  WO2006036024A1

文献信息

• A biocatalytic method for the chemoselective aerobic oxidation of aldehydes to carboxylic acids
  作者：Tanja Knaus、Vasilis Tseliou、Luke D. Humphreys、Nigel S. Scrutton、Francesco G. Mutti

  DOI：10.1039/c8gc01381k

  日期：——

  optimised biocatalytic oxidation runs in phosphate buffer at pH 8.5 and at 40 °C. From a set of sixty-one aliphatic, aryl-aliphatic, benzylic, hetero-aromatic and bicyclic aldehydes, fifty were converted with elevated yield (up to >99%). The exceptions were a few ortho-substituted benzaldehydes, bicyclic heteroaromatic aldehydes and 2-phenylpropanal. In all cases, the expected carboxylic acid was shown

  在此，我们提出了一项使用三种重组醛脱氢酶（ALDH）将醛氧化为羧酸的研究。ALDH 以纯化形式与烟酰胺氧化酶 (NOx) 一起使用，该酶以双氧（大气压下的空气）为代价回收催化 NAD + 。为了更方便的实际应用，还使用冻干全细胞和静息细胞生物催化剂研究了该反应。优化的生物催化氧化在 pH 8.5 和 40 °C 的磷酸盐缓冲液中运行。从一组 61 种脂肪族、芳基脂肪族、苄基、杂芳族和双环醛中，其中 50 种以较高的产率转化（高达 >99%）。少数邻位取代的苯甲醛、双环杂芳醛和2-苯基丙醛除外。在所有情况下，预期的羧酸都是唯一的产物（>99% 化学选择性）。同一分子内的其他可氧化官能团（例如羟基、烯烃和杂芳族氮或硫原子）保持不变。该反应规模用于氧化 5-(羟甲基)糠醛 (2 g)（一种生物基原料），得到 5-(羟甲基)糠酸，分离收率为 61%。新的生物催化方法避免使用有毒或不安全的氧化剂、强
• Rhodium-Catalyzed, Remote Terminal Hydroarylation of Activated Olefins through a Long-Range Deconjugative Isomerization
  作者：Arun Jyoti Borah、Zhuangzhi Shi

  DOI：10.1021/jacs.8b03560

  日期：2018.5.16

  The Rh-catalyzed, remote terminal hydroarylation of active olefins at the C7-position of indoles and the ortho-position of indolines and anilines with the appropriate choice of a N-P tBu2 directing group through long-range deconjugative isomerization has been reported. This transformation not only overcomes the conjugate rule of Michael acceptors but also controls the positional selectivity of indoles

  The Rh-catalyzed, remote terminal hydroarylation of active olefins at the C7-position of indoles and the ortho-position of indolines and anilines with the appropriate choice of a NP tBu2 directing group through long-range deconjugative isomerization has been reported. 这种转变不仅克服了迈克尔受体的共轭规则，而且还控制了吲哚的位置选择性，代表了烯烃异构化和吲哚的 CH 烷基化的重大进步。
• <i>In vitro</i> studies of maleidride-forming enzymes
  作者：Sen Yin、Steffen Friedrich、Vjaceslavs Hrupins、Russell J. Cox

  DOI：10.1039/d1ra02118d

  日期：——

  vitro assays of enzymes involved in the biosynthesis of maleidrides from polyketides in fungi were performed. The results show that the enzymes are closely related to primary metabolism enzymes of the citric acid cycle in terms of stereochemical preferences, but with an expanded substrate selectivity. A key citrate synthase can react both saturated and unsaturated acyl CoA substrates to give solely

  对真菌中的聚酮化合物生物合成马来酰亚胺所涉及的酶进行了体外测定。结果表明，这些酶在立体化学偏好方面与柠檬酸循环的初级代谢酶密切相关，但具有扩大的底物选择性。一种关键的柠檬酸合酶可以与饱和和不饱和的酰基辅酶 A 底物反应，仅产生抗取代的柠檬酸。这经历抗脱水以提供不饱和前体，该前体在体外通过类酮类异构酶酶环化以产生比索草酸。
• N‐Heterocyclic Carbene/Carboxylic Acid Co‐Catalysis Enables Oxidative Esterification of Demanding Aldehydes/Enals, at Low Catalyst Loading
  作者：Wacharee Harnying、Panyapon Sudkaow、Animesh Biswas、Albrecht Berkessel

  DOI：10.1002/anie.202104712

  日期：2021.9

  carboxylic acids, such as benzoic acid, boost the activity of N-heterocyclic carbene (NHC) catalysts in the oxidative esterification of aldehydes. A simple and efficient protocol for the transformation of a wide range of sterically hindered α- and β-substituted aliphatic aldehydes/enals, catalyzed by a novel and readily accessible N-Mes-/N-2,4,6-trichlorophenyl 1,2,4-triazolium salt, and benzoic acid as co-catalyst

  我们报告发现简单的羧酸，如苯甲酸，可以提高 N-杂环卡宾 (NHC) 催化剂在醛的氧化酯化中的活性。一种简单有效的转化各种位阻α-和β-取代脂肪醛/烯醛的简单有效方案，由一种新型且易于获得的N-Mes-/N-2,4,6-三氯苯基1,2催化,4-三唑鎓盐和苯甲酸作为助催化剂被开发出来。一系列迄今为止不适合 NHC 催化酯化的 α/β-取代的脂肪族醛/烯醛可以在 0.02-1.0 mol% 的典型催化剂负载下反应。对于苯甲醛，即使是 0.005 mol% 的 NHC 催化剂也证明是足够的：NHC 催化中达到的最低值。
• Allylic Oxidation of Methyl 2-Alkenoates
  作者：Mitsuru Nakayama、Shuzo Shinke、Yoichi Matsushita、Susumu Ohira、Shuichi Hayashi

  DOI：10.1246/bcsj.52.184

  日期：1979.1

  Allylic oxidation of methyl 2-alkenoates with chromium trioxide in a mixture of acetic anhydride and acetic acid afforded methyl 4-oxo-2-alkenoates.

  在乙酸酐和乙酸的混合物中用三氧化铬对 2-烯酸甲酯进行烯丙基氧化，得到 4-氧代-2-烯酸甲酯。