异丙基丙二酸二乙酯 | 2049-70-9

• 物质功能分类: 化学试剂 - 有机试剂 - 酯类
• 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: 异丙基丙二酸二乙酯
• 中文别名: 2-乙基-2-甲基丙二酸二乙酯
• 英文名称: diethyl 2-ethyl-2-methylmalonate
• 英文别名: 2-ethyl-2-methylmalonic acid diethyl ester；diethyl 2-ethyl-2-methylpropanedioate
• CAS: 2049-70-9
• 化学式: C₁₀H₁₈O₄
• 分子量: 202.251
• InChiKey: ODRGILDUWDVBJX-UHFFFAOYSA-N

物化性质

• 沸点：
  62 °C0.35 mm Hg(lit.)
• 密度：
  0.981 g/mL at 25 °C(lit.)
• 闪点：
  198 °F
• 稳定性/保质期：

  如果按照规格使用和储存，则不会分解，没有已知危险反应，应避免与氧化物接触。

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  14
• 可旋转键数：
  7
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

安全信息

• WGK Germany：
  1
• 海关编码：
  2917190090
• 储存条件：
  请将贮藏器保持密封，并存放在阴凉、干燥处。同时，确保工作环境有良好的通风或排气设施。

SDS

Diethyl 2-Ethyl-2-methylmalonate Revision number: 5
SAFETY DATA SHEET

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Section 1. IDENTIFICATION
Product name: Diethyl 2-Ethyl-2-methylmalonate

Revision number: 5

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Section 2. HAZARDS IDENTIFICATION
GHS classification
PHYSICAL HAZARDS Not classified
Not classified
HEALTH HAZARDS
ENVIRONMENTAL HAZARDS Not classified
GHS label elements, including precautionary statements
Pictograms or hazard symbols None
No signal word
Signal word
Hazard statements None
None
Precautionary statements:

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Section 3. COMPOSITION/INFORMATION ON INGREDIENTS
Substance/mixture: Substance
Components: Diethyl 2-Ethyl-2-methylmalonate
Percent: >97.0%(GC)
CAS Number: 2049-70-9
Synonyms: 2-Ethyl-2-methylmalonic Acid Diethyl Ester
Chemical Formula: C10H18O4

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Section 4. FIRST AID MEASURES
Inhalation: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
Get medical advice/attention if you feel unwell.
Skin contact: Remove/Take off immediately all contaminated clothing. Rinse skin with
water/shower. If skin irritation or rash occurs: Get medical advice/attention.
Eye contact: Rinse cautiously with water for several minutes. Remove contact lenses, if present
and easy to do. Continue rinsing. If eye irritation persists: Get medical
advice/attention.
Ingestion: Get medical advice/attention if you feel unwell. Rinse mouth.
Protection of first-aiders: A rescuer should wear personal protective equipment, such as rubber gloves and air-
tight goggles.

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Section 5. FIRE-FIGHTING MEASURES
Suitable extinguishing Dry chemical, foam, carbon dioxide.
media:
Unsuitable extinguishing Water (It may scatter and spread fire.)
media:
Diethyl 2-Ethyl-2-methylmalonate

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Section 5. FIRE-FIGHTING MEASURES
Precautions for firefighters: Fire-extinguishing work is done from the windward and the suitable fire-extinguishing
method according to the surrounding situation is used. Uninvolved persons should
evacuate to a safe place. In case of fire in the surroundings: Remove movable
containers if safe to do so.
Special protective When extinguishing fire, be sure to wear personal protective equipment.
equipment for firefighters:

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Section 6. ACCIDENTAL RELEASE MEASURES
Use personal protective equipment. Keep people away from and upwind of spill/leak.
Personal precautions,
protective equipment and Ensure adequate ventilation. Entry to non-involved personnel should be controlled
emergency procedures: around the leakage area by roping off, etc.
Environmental precautions: Prevent product from entering drains.
Methods and materials for Absorb spilled material in a suitable absorbent (e.g. rag, dry sand, earth, saw-dust).
containment and cleaning In case of large amount of spillage, contain a spill by bunding. Adhered or collected
up: material should be promptly disposed of, in accordance with appropriate laws and
regulations.

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Section 7. HANDLING AND STORAGE
Precautions for safe handling
Technical measures: Handling is performed in a well ventilated place. Wear suitable protective equipment.
Prevent generation of vapour or mist. Wash hands and face thoroughly after
handling.
Use a ventilation, local exhaust if vapour or aerosol will be generated.
Advice on safe handling: Avoid contact with skin, eyes and clothing.
Conditions for safe storage, including any
incompatibilities
Storage conditions: Keep container tightly closed. Store in a cool and dark place.
Store away from incompatible materials such as oxidizing agents.
Packaging material: Comply with laws.

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Section 8. EXPOSURE CONTROLS / PERSONAL PROTECTION
Install a closed system or local exhaust as possible so that workers should not be
Engineering controls:
exposed directly. Also install safety shower and eye bath.
Personal protective equipment
Respiratory protection: Vapor respirator. Follow local and national regulations.
Hand protection: Protective gloves.
Eye protection: Safety glasses. A face-shield, if the situation requires.
Skin and body protection: Protective clothing. Protective boots, if the situation requires.

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Section 9. PHYSICAL AND CHEMICAL PROPERTIES
Physical state (20°C): Liquid
Form: Clear
Colorless - Very pale yellow
Colour:
Odour: No data available
pH: No data available
Melting point/freezing point:No data available
79°C/0.7kPa
Boiling point/range:
Flash point: No data available
Flammability or explosive
limits:
No data available
Lower:
Upper: No data available
0.99
Relative density:
Solubility(ies):
No data available
[Water]
[Other solvents] No data available
Diethyl 2-Ethyl-2-methylmalonate

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Section 10. STABILITY AND REACTIVITY
Chemical stability: Stable under proper conditions.
Possibility of hazardous No special reactivity has been reported.
reactions:
Incompatible materials: Oxidizing agents
Hazardous decomposition Carbon monoxide, Carbon dioxide
products:

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Section 11. TOXICOLOGICAL INFORMATION
Acute Toxicity: No data available
Skin corrosion/irritation: No data available
Serious eye No data available
damage/irritation:
Germ cell mutagenicity: No data available
Carcinogenicity:
IARC = No data available
No data available
NTP =
Reproductive toxicity: No data available

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Section 12. ECOLOGICAL INFORMATION
Ecotoxicity:
Fish: No data available
Crustacea: No data available
Algae: No data available
Persistence / degradability: No data available
Bioaccumulative No data available
potential(BCF):
Mobility in soil
No data available
Log Pow:
Soil adsorption (Koc): No data available
Henry's Law No data available
constant(PaM3/mol):

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Section 13. DISPOSAL CONSIDERATIONS
Recycle to process, if possible. Consult your local regional authorities. You may be able to burn in a chemical
incinerator equipped with an afterburner and scrubber system. Observe all federal, state and local regulations when
disposing of the substance.

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Section 14. TRANSPORT INFORMATION
Does not correspond to the classification standard of the United Nations
Hazards Class:
UN-No: Not listed

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Section 15. REGULATORY INFORMATION
Safe management ordinance of dangerous chemical product (State Council announces on January 26, 2002
and revised on February 16,2011): Safe use and production, the storage of a dangerous chemical, transport,
loading and unloading were prescribed.
Diethyl 2-Ethyl-2-methylmalonate

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  异丙基丙二酸二乙酯 在 lithium aluminium tetrahydride 、 lithium chloride 作用下， 以 四氢呋喃 、 水 、 二甲基亚砜 为溶剂， 反应 16.0h， 生成 2-甲基丁醇
  参考文献：
  名称：

  厌氧烷烃通过富马酸酯加成降解的重排生物特征代谢产物的合成和质谱。

  摘要：

  厌氧烷烃生物降解过程中的代谢产物分析在揭示激活机制中起着重要作用。除了通过富马酸酯添加被认为是常见的生物标志物的琥珀酸烷基酯外，C骨架重排的下游代谢产物也可以被视为生物标志物。但是，很难在环境样品和富集培养物中检测到中间代谢物，导致缺乏直接的证据来证明富马酸酯添加途径的发生。在这项工作中，建立了重排代谢物的合成方法。合成了四种化合物，即丙二酸丙二酸，2-（2-甲基丁基）丙二酸，2-（2-甲基戊基）丙二酸和2-（2-甲基辛基）丙二酸，并通过四种衍生方法进行了测定。此外，获得了它们的质谱。在m / z 133 + 14n，160 + 28n，173 + 28n和[M-（45 + 14n）] +处观察到四个特征离子（对于乙基和正丁基酯，n = 0和2）。对于甲基酯化，质谱特征为m / z 132、145和[M-31] +，而对于甲硅烷基化，片段为m / z 73、147、217、248、261和[M-15]

  DOI：

  10.1016/j.ab.2020.113746
• 作为产物：
  描述：

  甲基丙二酸二乙酯 在 sodium ethanolate 作用下， 生成 异丙基丙二酸二乙酯
  参考文献：
  名称：

  Roland; McElvain, Journal of the American Chemical Society, 1937, vol. 59, p. 134

  摘要：

  DOI：

文献信息

• Triazolopyridazine compounds, their production and use
  申请人：Takeda Chemical Industries, Ltd.

  公开号：US05389633A1

  公开（公告）日：1995-02-14

  Novel compound represented by the formula: ##STR1## wherein R.sup.1 stands for H, an optionally substituted lower alkyl group or a halogen; R.sup.2 and R.sup.3 respectively stands for a hydrogen or an optionally substituted lower alkyl group, or R.sup.2 and R.sup.3 may, taken together with the adjacent --C.dbd.C-- group, form a 5- to 7-membered ring; X stands for O, SO or SO.sub.2 ; Y stands for a group of the formula: ##STR2## (R.sup.4 and R.sup.5 respectively stand for H or an optionally substituted lower alkyl group) or a divalent group derived from an optionally substituted 3- to 7-membered homocyclic or heterocyclic ring; R.sup.6 and R.sup.7 each stands for H, an optionally substituted lower alkyl group, an optionally substituted cycloalkyl group or an optionally substituted aryl group, or R.sup.6 and R.sup.7 may, taken together with the adjacent N, form an optionally substituted N-containing heterocyclic group; m stands for 0 to 4; n stands for 0 to 4, or a salt thereof, which has excellent anti-PAF activities anti-LTC.sub.4 activities and anti-ET-1 activities, and is of value as an antiasthmatic agent, and their production, intermediates and pharmasceutical compositions.

  由以下公式表示的新型化合物：##STR1## 其中 R.sup.1 代表 H，一个可选地取代的低级烷基团或一个卤素；R.sup.2 和 R.sup.3 分别代表一个氢或一个可选地取代的低级烷基团，或者 R.sup.2 和 R.sup.3 可以与相邻的 --C.dbd.C-- 基团一起形成一个 5 至 7 成员的环；X 代表 O, SO 或 SO.sub.2 ；Y 代表一个由以下公式表示的基团：##STR2## （R.sup.4 和 R.sup.5 分别代表 H 或一个可选地取代的低级烷基团）或一个由一个可选地取代的 3 至 7 成员的同环或杂环派生的二价基团；R.sup.6 和 R.sup.7 各自代表 H，一个可选地取代的低级烷基团，一个可选地取代的环烷基团或一个可选地取代的芳香基团，或者 R.sup.6 和 R.sup.7 可以与相邻的 N 一起形成一个可选地取代的含 N 杂环基团；m 代表 0 至 4；n 代表 0 至 4，或其盐，具有极好的抗-PAF 活性、抗-LTC.sub.4 活性和抗-ET-1 活性，作为抗哮喘剂具有价值，及其生产、中间体和药物组合物。
• Catalytic reductive desymmetrization of malonic esters
  作者：Pengwei Xu、Zhongxing Huang

  DOI：10.1038/s41557-021-00715-0

  日期：2021.7

  carbons with a pair of enantiotopic functional groups is a practical strategy for the synthesis of quaternary stereocentres, as it divides the tasks of enantioselection and C−C bond formation. The use of disubstituted malonic esters as the substrate of desymmetrization is particularly attractive, given their easy and modular preparation, as well as the high synthetic values of the chiral monoester products

  具有一对对映体官能团的完全取代碳的去对称化是合成四元立体中心的实用策略，因为它划分了对映体选择和 C-C 键形成的任务。使用二取代丙二酸酯作为去对称化的底物特别有吸引力，因为它们易于制备和模块化，以及手性单酯产品的高合成价值。在这里，我们报告了具有四齿配体的双核锌配合物可以选择性地将丙二酸酯的羰基之一氢化硅烷化以产生 α-季铵 β-羟基酯，为使用羧酸酯酶的不对称水解提供了有希望的替代方案。不对称还原具有出色的对映控制，可以区分空间上相似的取代基和对底物二酯基序的高化学选择性。连同丙二酸酯底物的多功能制备和还原后衍生化，不对称还原使合成具有不同结构特征的多种季立体中心成为可能。
• Radical Heterocyclization and Heterocyclization Cascades Triggered by Electron Transfer to Amide-Type Carbonyl Compounds
  作者：Huan-Ming Huang、David J. Procter

  DOI：10.1002/anie.201708354

  日期：2017.11.6

  Radical heterocyclizations triggered by electron transfer to amide‐type carbonyls, using SmI2‐H2O, provide straightforward access to bicyclic heterocyclic scaffolds containing bridgehead nitrogen centers. Furthermore, the first radical heterocyclization cascade triggered by reduction of amide‐type carbonyls delivers novel, complex tetracyclic architectures containing five contiguous stereocenters with

  通过使用SmI 2 -H 2 O将电子转移至酰胺型羰基引发的自由基杂环化反应，可以直接进入含有桥头氮中心的双环杂环骨架。此外，由酰胺型羰基还原引起的第一个自由基杂环级联反应提供了新颖，复杂的四环结构，其中包含五个连续的立体中心，并具有出色的非对映控制性。
• Selective mixed coupling of carboxylic acids (II). — photolysis of unsymmetrical diacylperoxides with alkenyl-, halo-, keto-, carboxyl-groups and a chiral α-carbon. Comparison with the mixed kolbe electrolysis
  作者：Michael Feldhues、Hans J. Schäfer

  DOI：10.1016/s0040-4020(01)97195-9

  日期：1985.1

  cholanoyl or 3- and 4-carboxyalkanoyl peroxides can be coupled (40 – 70 %). The α-chiral diacyl peroxide ls undergoes the photochemical coupling reaction with 80 % retention of its configuration. The photolysis of diacyl peroxides at −78° C proves to be a favorable supplement of the Kolbe-electrolysis in cases, where the electrolysis fails or produces low yields.

  制备烯基酰基和官能化的烷酰基十二烷酰过氧化物，产率为70％至97％，并在-78°C下光解。因此，4至10个烯酰基和4-烷酰过氧化物可提供良好的产率（56 – 68％）的不对称偶联产物。类似地，可以将α-与σ-卤代烷酰基，胆酰基或3-和4-羧基烷酰基过氧化物偶联（40-70％）。α-手性二酰基过氧化物ls经历光化学偶联反应，其构型保留80％。在电解失败或产率低的情况下，在-78°C下二酰过氧化物的光解被证明是Kolbe电解的有利补充。
• Effect of Supramolecular Inclusion on the 1,2-Rearrangement of Free Radicals
  作者：Ying Chen、Eric Kervio、János Rétey

  DOI：10.1002/1522-2675(200202)85:2<552::aid-hlca552>3.0.co;2-1

  日期：2002.2

  The free radicals 3-ethoxy-2-(ethoxycarbonyl)-3-oxopropyl (1.) and 3-ethoxy-2-(ethoxycarbonyl)-2-methyl-3-oxopropyl (2.) were generated by photolysis of perester precursors in i) hexane solution, ii) in the presence of β-cyclodextrin, and iii) in NaY zeolite. While free radicals in solution are reluctant to rearrange, they do so when encapsulated in β-cyclodextrin or NaY zeolite. The coenzyme-B12-dependent

  通过光解过酸酯前体在i)己烷溶液，ii)在β-环糊精存在下，和iii)在NaY沸石中。虽然溶液中的自由基不愿意重新排列，但当它们包裹在 β-环糊精或 NaY 沸石中时，它们就会重新排列。甲基丙二酰辅酶A 到琥珀酰辅酶A 的辅酶-B12 依赖性酶重排可以通过分子容器中假定的中间自由基类似物的光化学生成来模拟。