3-溴-2-甲基噻吩 | 30319-05-2

• 物质功能分类: 医药中间体 - 噻吩类化合物
• 分子结构分类: 有机化合物 - 有机卤素化合物 - 芳基卤化物
• 中文名称: 3-溴-2-甲基噻吩
• 英文名称: 3-bromo-2-methylthiophene
• 英文别名: 3-Brom-2-methyl-thiophen；2-methyl-3-bromothiophene
• CAS: 30319-05-2
• 化学式: C₅H₅BrS
• mdl: MFCD09033008
• 分子量: 177.065
• InChiKey: DFTNCGRDYHINDS-UHFFFAOYSA-N

物化性质

• 沸点：
  173-179 °C
• 密度：
  1.589±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  7
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  28.2
• 氢给体数：
  0
• 氢受体数：
  1

安全信息

• 危险品标志：
  Xi
• 海关编码：
  2934999090
• 包装等级：
  II
• 危险类别：
  3,6.1
• 危险性防范说明：
  P210,P240,P241,P242,P243,P261,P264,P270,P271,P273,P280,P302+P352,P303+P361+P353,P304+P340,P305+P351+P338,P310,P330,P332+P313,P337+P313,P370+P378
• 危险品运输编号：
  1992
• 危险性描述：
  H225,H301,H311,H315,H319,H331,H335,H412
• 储存条件：
  -20°C

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 3-Bromo-2-methylthiophene
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: 3-Bromo-2-methylthiophene
CAS number: 30319-05-2

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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.
Store in closed vessels, refrigerated.
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: C5H5BrS
Molecular weight: 177.1

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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, hydrogen bromide, sulfur 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：

  3-溴-2-甲基噻吩 在 溴甲烷 、 乙醚 、 乙醇 、 水 、 sodium acetate 、 magnesium 、 mercury dichloride 作用下， 生成 4-iodo-5-methyl-[2]thienylmercury (1+); chloride
  参考文献：
  名称：

  Steinkopf; Hanske, Justus Liebigs Annalen der Chemie, 1937, vol. 527, p. 264,269

  摘要：

  DOI：
• 作为产物：
  描述：

  2-甲基噻吩 在 N-溴代丁二酰亚胺(NBS) 、 正丁基锂 作用下， 以 四氢呋喃 、 正己烷 、 溶剂黄146 为溶剂， 反应 1.0h， 生成 3-溴-2-甲基噻吩
  参考文献：
  名称：

  （杂）戊烯与苯胺的温和碱促进的芳构化

  摘要：

  杂芳烃的过渡金属自由基芳基化是在室温下完成的，方法是将碳酸钠水溶液简单地添加到相应的杂芳烃和二氮杂salt鎓盐的溶液中，甚至可以原位形成。这种简便，廉价和温和的方法已得到优化，并已用于快速修饰有趣的分子核，如萘甲酰亚胺或联苯二环环戊烯。

  DOI：

  10.1002/asia.201701585

文献信息

• Palladium‐Catalyzed Reductive Carbonylation of (Hetero) Aryl Halides and Triflates Using Cobalt Carbonyl as CO Source
  作者：Bhushanarao Dogga、C. S. Ananda Kumar、Jayan T. Joseph

  DOI：10.1002/ejoc.202001328

  日期：2021.1.15

  A generalized protocol for the reductive carbonylation of (hetero) aryl halides and triflates under CO gas‐free conditions using Pd/Co2(CO)8 and triethylsilane has been developed. The mild reaction conditions, enhanced safety, and wide substrate scope highlight its importance in routine organic synthesis.

  已经开发了一种通用协议，用于在无CO气体条件下使用Pd / Co 2（CO）8和三乙基硅烷对（杂）芳基卤化物和三氟甲磺酸进行还原羰基化。温和的反应条件，增强的安全性和广泛的底物范围突出了其在常规有机合成中的重要性。
• A highly active catalytic system for Suzuki–Miyaura cross-coupling reactions of aryl and heteroaryl chlorides in water
  作者：Shu-Lan Mao、Yue Sun、Guang-Ao Yu、Cui Zhao、Zhi-Jun Han、Jia Yuan、Xiaolei Zhu、Qihua Yang、Sheng-Hua Liu

  DOI：10.1039/c2ob26463c

  日期：——

  An easily available Pd(OAc)2/(2-mesitylindenyl)dicyclohexylphosphine/Me(octyl)3N+Cl−/K3PO4·3H2O catalytic system was developed and it shows high catalytic activity in the Suzuki–Miyaura cross-coupling reaction of a diverse array of aryl and heteroaryl chlorides in water. Notably, this catalytic system also works with ultra-low loading of the catalyst with high turnover numbers.

  容易获得的Pd（OAc）2 /（2-异丁烯基）二环己基膦/ Me的（辛基）3 Ñ +氯- / K 3 PO 4 ·3H 2 ö催化体系被开发，它示出了在芳基和杂芳基氯化物的多样性阵列的Suzuki-Miyaura交叉偶联反应的高催化活性水。值得注意的是，该催化系统还可以在超低负荷下以高周转数运行。
• NEW AMINOTHIAZOLES AS FBPASE INHIBITORS FOR DIABETES
  申请人：Hebeisen Paul

  公开号：US20090143448A1

  公开（公告）日：2009-06-04

  Compounds of formula (I) as well as pharmaceutically acceptable salts and esters thereof, wherein R 1 to R 3 have the significance given in claim 1 and which can be used in the form of pharmaceutical compositions.

  式(I)的化合物以及其药用可接受的盐和酯，其中R1至R3具有权利要求1中给定的含义，并可用于制成药物组合物。
• Pyrazole-Based Lactate Dehydrogenase Inhibitors with Optimized Cell Activity and Pharmacokinetic Properties
  作者：Ganesha Rai、Daniel J. Urban、Bryan T. Mott、Xin Hu、Shyh-Ming Yang、Gloria A. Benavides、Michelle S. Johnson、Giuseppe L. Squadrito、Kyle R. Brimacombe、Tobie D. Lee、Dorian M. Cheff、Hu Zhu、Mark J. Henderson、Katherine Pohida、Gary A. Sulikowski、David M. Dranow、Md Kabir、Pranav Shah、Elias Padilha、Dingyin Tao、Yuhong Fang、Plamen P. Christov、Kwangho Kim、Somnath Jana、Pavan Muttil、Tamara Anderson、Nitesh K. Kunda、Helen J. Hathaway、Donna F. Kusewitt、Nobu Oshima、Murali Cherukuri、Douglas R. Davies、Jeffrey P. Norenberg、Larry A. Sklar、William J. Moore、Chi V. Dang、Gordon M. Stott、Leonard Neckers、Andrew J. Flint、Victor M. Darley-Usmar、Anton Simeonov、Alex G. Waterson、Ajit Jadhav、Matthew D. Hall、David J. Maloney

  DOI：10.1021/acs.jmedchem.0c00916

  日期：2020.10.8

  of compounds, using structure-based design concepts, coupled with optimization of cellular potency, in vitro drug–target residence times, and in vivo PK properties, to identify first-in-class inhibitors that demonstrate LDH inhibition in vivo. The lead compounds, named NCATS-SM1440 (43) and NCATS-SM1441 (52), possess desirable attributes for further studying the effect of in vivo LDH inhibition.

  乳酸脱氢酶（LDH）催化丙酮酸向乳酸的转化，同时还原的烟酰胺腺嘌呤二核苷酸的氧化是糖酵解途径的最后一步。糖酵解在癌细胞的代谢可塑性中起重要作用，长期以来一直被认为是潜在的治疗靶点。因此，LDH的有效的选择性抑制剂代表了一种有吸引力的治疗方法。然而，迄今为止，药理剂未能实现体内显着的靶标结合，可能是因为蛋白质以非常高的浓度存在于细胞中。我们在此报告了一项领先的优化运动，该研究使用基于结构的设计概念，重点研究了吡唑基系列化合物，并在体外优化了细胞效能药物-靶标的停留时间和体内PK特性，以鉴定可证明LDH在体内具有抑制作用的一流抑制剂。名为NCATS-SM1440（43）和NCATS-SM1441（52）的先导化合物具有进一步研究体内LDH抑制作用所需的属性。
• Remarkably Efficient Iridium Catalysts for Directed C(sp²)–H and C(sp³)–H Borylation of Diverse Classes of Substrates
  作者：Md Emdadul Hoque、Mirja Md Mahamudul Hassan、Buddhadeb Chattopadhyay

  DOI：10.1021/jacs.0c13415

  日期：2021.4.7

  aliphatic substrates for selective C(sp3)–H bond borylations. Heterocyclic molecules are selectively borylated using the inherently elevated reactivity of the C–H bonds. A number of late-stage C–H functionalization have been described using the same catalysts. Furthermore, we show that one of the catalysts could be used even in open air for the C(sp2)–H and C(sp3)–H borylations enabling the method more general

  在这里，我们描述了一类新的 C-H 硼化催化剂的发现及其在芳族、杂芳族和脂肪族系统的区域选择性 C-H 硼化中的应用。新催化剂具有 Ir-C(噻吩基) 或 Ir-C(呋喃基) 阴离子配体，而不是标准 C-H 硼化条件中使用的二胺型中性螯合配体。据报道，这些新发现的催化剂的使用对不同种类的芳烃底物显示出优异的反应性和邻位选择性，并具有高分离产率。此外，该催化剂被证明对大量脂肪族底物的选择性 C(sp 3)–H 键硼化。杂环分子利用 C-H 键固有的高反应性选择性地硼化。已经使用相同的催化剂描述了许多后期 C-H 功能化。此外，我们表明其中一种催化剂甚至可以在露天用于 C(sp 2 )-H 和 C(sp 3 )-H 硼酸化，从而使该方法更加通用。初步的机理研究表明，活性催化中间体是 Ir(bis)boryl 络合物，连接的配体作为双齿配体。总的来说，这项研究强调了新型 C-H 硼酸化催化剂的发现，这些催化剂应该在