3,4-二甲氧基苯基乙酸乙酯 | 18066-68-7

• 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 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 3,4-二甲氧基苯基乙酸乙酯
• 中文别名: 2-(3,4-二甲氧基苯基)乙酸乙酯；3,4-二甲氧基苯乙酸乙酯
• 英文名称: ethyl 3,4-dimethoxyphenylacetate
• 英文别名: ethyl 2-(3,4-dimethoxyphenyl)acetate；(3,4-dimethoxyphenyl)acetic acid ethyl ester
• CAS: 18066-68-7
• 化学式: C₁₂H₁₆O₄
• mdl: MFCD00017272
• 分子量: 224.257
• InChiKey: WZKCZNJTDZCNMH-UHFFFAOYSA-N

物化性质

• 沸点：
  191 °C
• 密度：
  1.084±0.06 g/cm3(Predicted)
• 闪点：
  159-160°C/4mm
• 稳定性/保质期：
  常温常压下稳定，避免与氧化物接触。

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  16
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.416
• 拓扑面积：
  44.8
• 氢给体数：
  0
• 氢受体数：
  4

安全信息

• TSCA：
  Yes
• 危险品标志：
  Xn,Xi
• 安全说明：
  S26,S36
• 危险类别码：
  R22,R36/37/38
• WGK Germany：
  3
• RTECS号：
  TY1225000
• 海关编码：
  29211980
• 包装等级：
  III
• 危险类别：
  6.1(b)
• 危险品运输编号：
  2811
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335
• 储存条件：
  常温下应密闭避光保存，并保持通风和干燥。

SDS

Name:	Ethyl 2-(3 4-dimethoxyphenyl)acetate 97% Material Safety Data Sheet
Synonym:	Homoveratric acid, ethyl este
CAS:	18066-68-7

Section 1 - Chemical Product MSDS Name:Ethyl 2-(3 4-dimethoxyphenyl)acetate 97% Material Safety Data Sheet
Synonym:Homoveratric acid, ethyl este

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Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS

CAS#	Chemical Name	content	EINECS#
18066-68-7	Ethyl 2-(3,4-dimethoxyphenyl)acetate	97%	241-974-9

Hazard Symbols: None Listed.
Risk Phrases: None Listed.

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Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Not available.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation. May be harmful if absorbed through the skin.
Ingestion:
May cause irritation of the digestive tract. May be harmful if swallowed.
Inhalation:
May cause respiratory tract irritation. May be harmful if inhaled.
Chronic:
Not available.

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Section 4 - FIRST AID MEASURES
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Get medical aid. Wash mouth out with water.
Inhalation:
Remove from exposure and move to fresh air immediately.
Notes to Physician:
Treat symptomatically and supportively.

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Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media:
Use water spray, dry chemical, carbon dioxide, or chemical foam.

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Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container.

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Section 7 - HANDLING and STORAGE
Handling:
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage:
Store in a cool, dry place. Store in a tightly closed container.

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Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 18066-68-7: Personal Protective Equipment Eyes: Not available.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

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Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Liquid
Color: dark
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 191 deg C @25mmHg
Freezing/Melting Point: Not available.
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density:
Molecular Formula: C12H16O4
Molecular Weight: 224

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Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Not available.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Strong oxidizing agents, bases.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide.
Hazardous Polymerization: Has not been reported

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Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 18066-68-7 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
Ethyl 2-(3,4-dimethoxyphenyl)acetate - Not listed by ACGIH, IARC, or NTP.

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Section 12 - ECOLOGICAL INFORMATION

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Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.

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Section 14 - TRANSPORT INFORMATION

IATA
No information available.
IMO
No information available.
RID/ADR
No information available.

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Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 18066-68-7: No information available.
Canada
CAS# 18066-68-7 is listed on Canada's NDSL List.
CAS# 18066-68-7 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 18066-68-7 is listed on the TSCA inventory.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  3,4-二甲氧基苯基乙酸乙酯 在 叔丁基过氧化氢 、 potassium permanganate 、 lithium aluminium tetrahydride 、 正丁基锂 、 meso-tetraphenylporphyrin iron(III) chloride 、 溶剂黄146 、 二异丙胺 、 lithium diisopropyl amide 作用下， 以 四氢呋喃 为溶剂， 反应 35.0h， 生成 藜芦酸
  参考文献：
  名称：

  木质素的氧化解构：β-1和β-5键的氧化†

  摘要：

  关于木质素模型化合物中β-O-4键的氧化裂解方法的报道很多，但是关于那些方法如何影响木质素中其他键的报道相对较少。我们使用四种β-1和β-5模型化合物研究了其中几种氧化方法对β-1和β-5木质素键的影响。我们观察到C–C键的直接氧化裂解发生在金属催化的TEMPO氧化系统和铁卟啉氧化中，而我们都没有在β-O-4模型中观察到类似的氧化。事实证明，β-5键对所有这些氧化系统都具有较强的抗性，但是当用KMnO 4处理时，β-5模型3中的二氢呋喃环被打开。在高温下。最有前途的是用DDQ氧化2，就像在与β-O-4模型的反应中一样，它以高收率（84％）生成苄基酮。该反应显示出对苄基位置的选择性以及与苯酚的相容性，这是两步，苄基氧化/木质素裂解的Baeyer-Villiger路线非常需要的特性。

  DOI：

  10.1039/c8ob00409a
• 作为产物：
  描述：

  3,4-二甲氧基苯乙酸 在 4-二甲氨基吡啶 、 草酰氯 、 三乙胺 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 生成 3,4-二甲氧基苯基乙酸乙酯
  参考文献：
  名称：

  由芳基重氮乙酸酯和Fe（NO3）3·9H2O制备有机硝酸盐。

  摘要：

  据报道有一个热学方案，可以使用Fe（NO3）3·9H2O将硝酸正式插入芳基重氮乙酸酯中。该策略温和，高产，可制备史无前例的有机硝酸盐家族的各种成员。硝酸盐基团也可以容易地转化成其他官能团和杂环部分，并且可能允许对其尚未释放的潜力进行新的生物学探索，这些潜力与它们的NO释放能力有关。

  DOI：

  10.1021/acs.orglett.9b02522

文献信息

• <i>gem-</i>Difluoroolefination of Diazo Compounds with TMSCF₃ or TMSCF₂Br: Transition-Metal-Free Cross-Coupling of Two Carbene Precursors
  作者：Mingyou Hu、Chuanfa Ni、Lingchun Li、Yongxin Han、Jinbo Hu

  DOI：10.1021/jacs.5b09888

  日期：2015.11.18

  fragment resulting from a diazo compound and a difluorocarbene fragment derived from Ruppert-Prakash reagent (TMSCF3) or TMSCF2Br, has been developed. This gem-difluoroolefination proceeds through the direct nucleophilic addition of diazo compounds to difluorocarbene followed by elimination of N2. Compared to previously reported Cu-catalyzed gem-difluoroolefination of diazo compounds with TMSCF3, which possesses

  一种新的烯烃化方案，用于两种不同来源产生的两个卡宾片段的无过渡金属交叉偶联，即由重氮化合物产生的非氟化卡宾片段和源自 Ruppert-Prakash 试剂 (TMSCF3) 或 TMSCF2Br 的二氟卡宾片段，已经被开发出来。这种墒二氟烯烃化是通过重氮化合物直接亲核加成到二氟卡宾，然后消除 N2 来进行的。与之前报道的铜催化重氮化合物与 TMSCF3 的二氟烯烃化相比，由于对重氮化合物和原位生成的 CuCF3 的反应性要求苛刻，其底物范围狭窄，这种无过渡金属的方案提供了各种二取代 1,1-二氟烯烃（包括二氟丙烯酸酯）的通用有效方法，二芳基二氟烯烃以及芳基烷基二氟烯烃。鉴于重氮化合物和二氟卡宾试剂的易得性以及 1,1-二氟烯烃的多功能转化，这种新的偕二氟烯烃化方法有望在有机合成中得到广泛应用。
• Drugs comprising 2,3- or 3,4-diphenyl derivatives of
  申请人：Laboratoires Hoechst S.A.

  公开号：US04785007A1

  公开（公告）日：1988-11-15

  New drugs comprising 2,3- or 3,4-diphenyl derivatives of .gamma.-nitrile-esters or the products of cyclization of the 2,3-diphenyl derivatives according to the formulae A, B and C are claimed. Process for cyclization of 2,3-diphenyl derivatives of .gamma.-nitrile-esters, new 2,3-diphenyl derivatives of .gamma.-nitrile-esters corresponding to the formulae I to VIII are claimed; new 3,4-diphenyl derivatives of the said esters coresponding to the formulae IX and X, and new 3,4-diphenylpiperidone derivatives corresponding to the specific formulae IX to XXVII are described.

  新药物包括2,3-或3,4-二苯基γ-腈酯衍生物或根据公式A、B和C的2,3-二苯基衍生物的环化产物。声明了2,3-二苯基γ-腈酯衍生物的环化过程，声称符合公式I至VIII的新2,3-二苯基γ-腈酯衍生物；声称符合公式IX和X的新3,4-二苯基酯衍生物，描述了符合特定公式IX至XXVII的新3,4-二苯基哌啶酮衍生物。
• Lewis Base Catalyzed Asymmetric Hydrosilylation of α-Substituted β-Enamino Esters: Facile Access to Enantioenriched β2-Amino Esters via Dynamic Kinetic Resolution
  作者：Xiao-Mei Zhang、Chang Shu、Xiao-Yan Hu、Shuai-Shuai Li、Wei-Cheng Yuan

  DOI：10.1055/s-0034-1378323

  日期：——

  A chiral Lewis base organocatalyzed asymmetric hydrosilylation of α-substituted β-enamino esters is presented. The reactions proceeded through dynamic kinetic resolution to afford various enantioenriched β2-amino esters with high yields (up to 98%) in moderate enantioselectivities (up to 77% ee).

  介绍了手性路易斯碱有机催化的 α-取代 β-烯氨基酯的不对称氢化硅烷化。反应通过动态动力学拆分进行，以中等对映选择性（高达 77% ee）以高产率（高达 98%）提供各种富含对映体的 β2-氨基酯。
• .beta.-Adrenergic blocking agents. 19. 1-Phenyl-2-[[(substituted-amido)alkyl]amino]ethanols
  作者：M. S. Large、L. H. Smith

  DOI：10.1021/jm00176a002

  日期：1980.2

  series of derivatives of 1-phenyl-2-[[(substituted amido)alkyl]amino]ethanols is described. The compounds were investigated for beta-adrenoceptor blocking properties, and many showed a surprising degree of potency and beta 1-cardioselectivity when tested in vivo in anesthetized cats. The structure-activity relationships shown by this series of compounds are discussed and related to known beta-adrenergic

  描述了1-苯基-2-[[（取代的酰胺基烷基）氨基]氨基]乙醇的一系列衍生物的合成。研究了这些化合物的β-肾上腺素受体阻断特性，当在麻醉的猫体内进行测试时，许多化合物显示出令人惊讶的效力和β1-心脏选择性。讨论了这一系列化合物显示的结构活性关系，并与已知的β-肾上腺素能阻断剂有关。
• 2-(Nuclearly-substituted)benzylpyrrolidines
  申请人：Byk Gulden Lomberg Chemische Fabrik G.m.b.H.

  公开号：US04279918A1

  公开（公告）日：1981-07-21

  2-Benzylpyrrolidines bearing from 1 to 4 nuclear substituents on the benzyl ring are pharmacologically active, particularly on the CNS, on blood pressure and on pain sensation for warm-blooded animals. They are synthesized, e.g., by reducing appropriate 2-benzylpyrrolidines and are formulated into medicament compositions according to established conventional techniques.

  2-苄基吡咯烷酮在苄基环上带有1至4个核取代基，具有药理活性，特别是对于中枢神经系统、血压和对于温血动物的疼痛感觉。它们可以通过还原适当的2-苄基吡咯烷酮合成，并根据已建立的传统技术制成药物组合物。

表征谱图