6-氯-2-羟基喹恶啉 | 2427-71-6

• 物质功能分类: 化学农药原药 - 除草剂 - 除草剂中间体
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氮杂萘
• 中文名称: 6-氯-2-羟基喹恶啉
• 中文别名: 6-氯-2(1H)-喹喔啉酮；2-羟基-6-氯喹喔啉；6-氯-2-羟基喹噁啉；6-氯-2-羟基喹喔啉
• 英文名称: 6-chloroquinoxalin-2(1H)-one
• 英文别名: 6-chloroquinoxalin-2-one；6-Chlor-2-hydroxy-chinoxalin；6-chloro-1,2-dihydroquinoxalin-2-one；6-Chloro-2(1H)-quinoxalinone；6-chloro-1H-quinoxalin-2-one
• CAS: 2427-71-6
• 化学式: C₈H₅ClN₂O
• mdl: MFCD03265373
• 分子量: 180.593
• InChiKey: SJAZZQLTKBYDHN-UHFFFAOYSA-N

物化性质

• 熔点：
  305 °C
• 沸点：
  160-170 °C(Press: 10 Torr)
• 密度：
  1.50±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  12
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  41.5
• 氢给体数：
  1
• 氢受体数：
  2

安全信息

• 安全说明：
  S24/25
• WGK Germany：
  3
• 海关编码：
  2933990090

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 6-Chloro-2(1h)-quinoxalinone
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: 6-Chloro-2(1h)-quinoxalinone
CAS number: 2427-71-6

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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: C8H5ClN2O
Molecular weight: 180.6

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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, hydrogen chloride.

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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

制备方法与用途

用途

2-喹喔啉醇化合物如2-羟基-6-氯喹喔啉是生产药用化学品和农用化学品的重要中间体。2-羟基-6-氯喹喔啉可以通过从对氯邻硝基乙酰乙酰苯胺制备得到喹喔啉醇-4-氧化物，然后还原制得。

化学性质

本品为白色结晶，工业品为浅棕色固体粉末，难溶于水，并与碱生成盐。

用途

2-羟基-6-氯喹喔啉是除草剂喹禾灵的中间体。

生产方法

其制备方法如下：在反应釜中加入N-4-氯-2-硝基苯基乙酰基乙酰胺和溶剂，减压加热回流1.5小时后冷却至室温。随后转移至还原釜中，并加入还原剂（如硼氢化钠或亚硫酸氢钠），进行室温还原1.5小时。最后将反应液转移至中和釜中，调节pH值至4后过滤、洗涤至中性并干燥得成品。

反应信息

• 作为反应物：
  描述：

  6-氯-2-羟基喹恶啉 在 sodium tetrahydroborate 、 N,N-二异丙基乙胺 作用下， 以 四氢呋喃 、 乙醇 、 甲苯 为溶剂， 反应 37.5h， 生成 6-Chloro-4-(morpholine-4-carbonyl)-1,3-dihydroquinoxalin-2-one
  参考文献：
  名称：

  High-Affinity Partial Agonist Imidazo[1,5-a]quinoxaline Amides, Carbamates, and Ureas at the γ-Aminobutyric Acid A/Benzodiazepine Receptor Complex

  摘要：

  A series of imidazo[1,5-alpha]quinoxaline amides, carbamates, and ureas which have high affinity for the gamma-aminobutyric acid A/benzodiazepine receptor complex was developed. Compounds within this class have varying efficacies racing from antagonists to full agonists. However, most analogs were found to be partial agonists as indicated by [S-35]TBPS and Cl- current ratios. Many of these compounds were also effective in antagonizing metrazole-induced seizures in accordance with anticonvulsant and possible anxiolytic activity. Selected quinoxalines displayed limited benzodiazepine-type side effects such as ethanol potentiation and physical dependence in animal models. Dimethylamino urea 41 emerged as the most interesting analog, having a partial agonist profile in vitro while possessing useful activity in animal models of anxiety such as the Vogel and Geller assays. In accordance with its partial agonist profile, 41 was devoid of typical benzodiazepine side effects.

  DOI：

  10.1021/jm940765f
• 作为产物：
  描述：

  3,4-二硝基氯苯 在 ammonium hydroxide 、 乙醇 、 镍 、 silver nitrate 、 苯 作用下， 生成 6-氯-2-羟基喹恶啉
  参考文献：
  名称：

  Crowther et al., Journal of the Chemical Society, 1949, p. 1260,1268

  摘要：

  DOI：

文献信息

• Silver‐Enabled General Radical Difluoromethylation Reaction with TMSCF ₂ H
  作者：Jun Yang、Shengqing Zhu、Fang Wang、Feng‐Ling Qing、Lingling Chu

  DOI：10.1002/anie.202014587

  日期：2021.2.19

  A silver‐mediated oxidative difluoromethylation of styrenes and vinyl trifluoroborates with TMSCF2H is reported for the first time. This method enables direct and facile access to CF2H‐alkenes from abundant alkenes with excellent functional‐group compatibility. Moreover, this Ag/TMSCF2H protocol could further enable a series of radical difluoromethylation reactions of a wide array of substrates, offering

  首次报道了用TMSCF 2 H对苯乙烯和三氟硼酸乙烯基酯进行银介导的氧化二氟甲基化。这种方法可以从丰富的烯烃中直接和轻松地获得CF 2 H-烯烃，并且具有出色的官能团相容性。此外，该Ag / TMSCF 2 H方案可以进一步实现一系列底物的一系列自由基二氟甲基化反应，从而为构建多样化的C-CF 2 H键提供通用和互补的平台。
• Iodine-Catalyzed C–N Bond Formation: Synthesis of 3-Aminoquinoxalinones under Ambient Conditions
  作者：Abhishek Gupta、Mahesh Subhashrao Deshmukh、Nidhi Jain

  DOI：10.1021/acs.joc.7b00464

  日期：2017.5.5

  cross-dehydrogenative coupling between quinoxalinones (sp2 C–H) and amines (N–H) in the presence of catalytic iodine is reported. The reaction yields 3-aminoquinoxalinones in moderate to high yields under ambient conditions in dioxane as solvent and aqueous tert-butyl hydroperoxide (TBHP) as the terminal oxidant. The reaction is highly versatile and exhibits good functional group tolerance with a range of primary

  据报道，在催化碘存在下，喹喔啉酮（sp 2 C–H）和胺（NH）之间无金属的交叉脱氢偶联。该反应在环境条件下，以二恶烷为溶剂，以叔丁基氢过氧化物水溶液（TBHP）作为末端氧化剂，以中等至高产率产生3-氨基喹喔啉。该反应是高度通用的，并且在一系列伯胺和仲胺中表现出良好的官能团耐受性。它为获得药物活性的3-氨基喹喔啉酮衍生物提供了实用途径。初步的机理研究表明，胺的原位碘化是假定的活化方式。
• Direct C–H sulfenylation of quinoxalinones with thiols under visible-light-induced photocatalyst-free conditions
  作者：Qing-Hu Teng、Yan Yao、Wen-Xiu Wei、Hai-Tao Tang、Jia-Rong Li、Ying-Ming Pan

  DOI：10.1039/c9gc03045j

  日期：——

  We have developed a metal-free and catalyst-free visible-light-promoted direct C–H sulfenylation of quinoxalin-2(1H)-ones with thiols for the synthesis of diverse 3-sulfenylquinoxalin-2(1H)-ones.

  我们开发了一种无金属、无催化剂的可见光促进的直接C-H砜基化方法，用于合成多样化的3-砜基喹啉-2(1H)-酮。
• 一种3-硫醚基喹喔啉酮化合物的合成方法
  申请人：广西师范大学

  公开号：CN110540525B

  公开（公告）日：2022-11-22

  本发明公开了一种3‑硫醚基喹喔啉酮化合物的合成方法，包括如下步骤：（1）于石英管中依次加入0.5毫摩尔喹喔啉酮、1毫摩尔硫酚和1.5毫升N‑甲基吡咯烷酮作为溶剂；（2）在蓝光（5‑9瓦）下室温反应20‑36小时，薄层色谱跟踪反应；（3）待反应完全后，将反应物倒入10‑30毫升水中，并用20‑30毫升乙酸乙酯萃取，用饱和食盐水10‑20毫升洗涤三次；（4）用无水硫酸钠干燥、过滤、减压除去溶剂；（5）经快速硅胶柱层析纯化，洗脱剂为乙酸乙酯／石油醚=1：5‑10，得产物。该方法原料易得，操作简单，反应步骤少，产量高，底物适用范围广，应用前景广泛。
• Electrochemically C–H/S–H Oxidative Cross-Coupling between Quinoxalin-2(1<i>H</i>)-ones and Thiols for the Synthesis of 3-Thioquinoxalinones
  作者：Jiadi Zhou、Zhonghui Li、Zexu Sun、Quanlei Ren、Qiwei Zhang、Hu Li、Jianjun Li

  DOI：10.1021/acs.joc.0c00050

  日期：2020.3.20

  An electrochemical method for the C(sp2)-H thioetherification of quinoxalin-2(1H)-ones with primary, secondary, and tertiary thiols has been reported. Various quinoxalin-2(1H)-ones underwent this thioetherification smoothly under metal- and chemical oxidant-free conditions, affording 3-alkylthiol-substituted quinoxalin-2(1H)-ones in moderate to good yields.

  已经报道了用伯，仲和叔硫醇对喹喔啉-2（1H）-进行C（sp2）-H硫醚化的电化学方法。各种quinoxalin-2（1H）-one在无金属和化学氧化剂的条件下顺利进行了硫醚化，从而以中等到良好的产率提供了3-烷基硫醇取代的quinoxalin-2（1H）-one。