4,5-二氟苯-1,2-二胺 | 76179-40-3

• 物质功能分类: 有机原料 - 氨基化合物 - 环烷胺、芳香单胺、芳香多胺及其衍生物和盐
• 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: 4,5-二氟苯-1,2-二胺
• 中文别名: 4,5-二氟-1,2-苯二胺；4,5-二氟邻苯二胺
• 英文名称: 2-amino-4,5-difluoroaniline
• 英文别名: 4,5-difluorobenzene-1,2-diamine；4,5-difluoro-1,2-phenylenediamine；4,5-difluoro-o-phenylenediamine；1,2-diamino-4,5-difluorobenzene；4,5-difluoro-1,2-diaminobenzene
• CAS: 76179-40-3
• 化学式: C₆H₆F₂N₂
• mdl: MFCD00061131
• 分子量: 144.124
• InChiKey: PPWRHKISAQTCCG-UHFFFAOYSA-N

物化性质

• 熔点：
  132 °C
• 沸点：
  282.2±35.0 °C(Predicted)
• 密度：
  1.407±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 重原子数：
  10
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  52
• 氢给体数：
  2
• 氢受体数：
  4

安全信息

• 安全说明：
  S24,S36/37
• 危险类别码：
  R36/37/39
• 海关编码：
  2921590090
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H315,H319,H335
• 储存条件：
  | 室温 |

SDS

4,5-Difluoro-1,2-phenylenediamine Revision number: 5
SAFETY DATA SHEET

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Section 1. IDENTIFICATION
Product name: 4,5-Difluoro-1,2-phenylenediamine

Revision number: 5

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Section 2. HAZARDS IDENTIFICATION
GHS classification
PHYSICAL HAZARDS Not classified
HEALTH HAZARDS
Skin corrosion/irritation Category 2
Category 2A
Serious eye damage/eye irritation
ENVIRONMENTAL HAZARDS Not classified
GHS label elements, including precautionary statements
Pictograms or hazard symbols
Signal word Warning
Hazard statements Causes skin irritation
Causes serious eye irritation
Precautionary statements:
Wash hands thoroughly after handling.
[Prevention]
Wear protective gloves/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses,
[Response]
if present and easy to do. Continue rinsing.
If eye irritation persists: Get medical advice/attention.
IF ON SKIN: Gently wash with plenty of soap and water.
If skin irritation occurs: Get medical advice/attention.
Take off contaminated clothing and wash before reuse.

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Section 3. COMPOSITION/INFORMATION ON INGREDIENTS
Substance/mixture: Substance
Components: 4,5-Difluoro-1,2-phenylenediamine
Percent: >97.0%(GC)(T)
CAS Number: 76179-40-3
Synonyms: 1,2-Diamino-4,5-difluorobenzene
C6H6F2N2
Chemical Formula:

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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.
4,5-Difluoro-1,2-phenylenediamine

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Section 4. FIRST AID MEASURES
Skin contact: Remove/Take off immediately all contaminated clothing. Gently wash with plenty of
soap and water. 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.
A rescuer should wear personal protective equipment, such as rubber gloves and air-
Protection of first-aiders:
tight goggles.

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Section 5. FIRE-FIGHTING MEASURES
Suitable extinguishing Dry chemical, foam, water spray, carbon dioxide.
media:
Specific hazards arising Take care as it may decompose upon combustion or in high temperatures to
from the chemical: generate poisonous fume.
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
Personal precautions, Use personal protective equipment. Keep people away from and upwind of spill/leak.
protective equipment and Entry to non-involved personnel should be controlled around the leakage area by
emergency procedures: roping off, etc.
Environmental precautions: Prevent product from entering drains.
Methods and materials for Sweep dust to collect it into an airtight container, taking care not to disperse it.
containment and cleaning Adhered or collected material should be promptly disposed of, in accordance with
up: 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 dispersion of dust. Wash hands and face thoroughly after handling.
Use a local exhaust if dust 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 under inert gas.
Store away from incompatible materials such as oxidizing agents.
Air-sensitive
Packaging material: Comply with laws.

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Section 8. EXPOSURE CONTROLS / PERSONAL PROTECTION
Engineering controls: Install a closed system or local exhaust as possible so that workers should not be
exposed directly. Also install safety shower and eye bath.
Personal protective equipment
Respiratory protection: Dust respirator. Follow local and national regulations.
Hand protection: Protective gloves.
Safety glasses. A face-shield, if the situation requires.
Eye protection:
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): Solid
Crystal- Powder
Form:
4,5-Difluoro-1,2-phenylenediamine

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Section 9. PHYSICAL AND CHEMICAL PROPERTIES
Colour: White - Deep yellow red
Odour: No data available
pH: No data available
Melting point/freezing point:132°C
Boiling point/range: No data available
Flash point: No data available
Flammability or explosive
limits:
Lower: No data available
Upper: No data available
Relative density: No data available
Solubility(ies):
[Water] No data available
[Other solvents] No data available

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Section 10. STABILITY AND REACTIVITY
Stable under proper conditions.
Chemical stability:
Possibility of hazardous No special reactivity has been reported.
reactions:
Incompatible materials: Oxidizing agents
Hazardous decomposition Carbon monoxide, Carbon dioxide, Nitrogen oxides (NOx), Hydrogen fluoride
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
NTP = No data available
Reproductive toxicity: No data available

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Section 12. ECOLOGICAL INFORMATION
Ecotoxicity:
Fish: No data available
No data available
Crustacea:
Algae: No data available
Persistence / degradability: No data available
Bioaccumulative No data available
potential(BCF):
Mobility in soil
Log Pow: No data available
Soil adsorption (Koc): No data available
No data available
Henry's Law
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 dissolve or mix material
with a combustible solvent and 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
Hazards Class: Does not correspond to the classification standard of the United Nations
UN-No: Not listed
4,5-Difluoro-1,2-phenylenediamine

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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.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

制备方法与用途

4,5-二氟苯-1,2-二胺

4,5-二氟苯-1,2-二胺是有机合成中间体和化工医药中间体，可用于实验室研发和化工医药研发过程中的有机合成反应。

制备方法

将10克（57.4毫摩尔）4,5-二氟-2-硝基苯胺、1克10%钯碳催化剂和100毫升甲醇混合，加入充满氮气的反应瓶中。随后加入20毫升乙酸并通入氢气。待反应在室温下进行3天后，过滤去除钯催化剂，收集滤液，并通过减压蒸馏处理。将残余物溶解于氯仿中，用饱和碳酸钠溶液萃取三次，再用硫酸镁干燥有机相，过滤，收集滤液并蒸发溶剂，最终得到棕黄色固体。

上下游信息

• 上游原料

  中文名称	英文名称	CAS号	化学式	分子量
  4-氟-1,2-苯二胺	4-fluoro-1,2-phenylenediamine	367-31-7	C6H7FN2	126.133
  3,4-二氟苯胺	3,4-difluoroaniline	3863-11-4	C6H5F2N	129.109

反应信息

• 作为反应物：
  描述：

  4,5-二氟苯-1,2-二胺 在 盐酸 、 potassium nitrate 、 三氟乙酸 作用下， 反应 62.5h， 生成 6,7-difluoro-1,4-dihydro-5-nitroquinoxaline-2,3-dione
  参考文献：
  名称：

  取代的1,4-二氢喹喔啉-2,3-二酮的合成与构效关系：N-甲基-D-天冬氨酸（NMDA）受体甘氨酸位点和非NMDA谷氨酸受体的拮抗剂。

  摘要：

  合成了一系列的单，二，三和四取代的1,4-二氢喹喔啉-2,3-二酮（QXs），并在N-甲基-D-天冬氨酸（NMDA）/甘氨酸位点和α位作为拮抗剂进行了评估-氨基-3-羟基-5-甲基异恶唑-4-丙酸优先的非NMDA受体。通过电测定在表达大鼠全脑poly（A）+ RNA的非洲爪蟾卵母细胞中测量拮抗剂的效力。三取代QX 17a（ACEA 1021），17b（ACEA 1031），24a和27，在5位含硝基，在6和7位含卤素，在甘氨酸上显示出高效价（Kb约为6-8 nM）位点，对非NMDA受体的药效中等（Kb = 0.9-1.5 microM），与非NMDA受体相比，甘氨酸位点拮抗作用的选择性最高（120-250倍）。四取代的QX 17d e是比相应的三取代QX弱100倍的弱甘氨酸位点拮抗剂，在8位上F作为取代基比Cl具有更好的耐受性。与三取代类似物相比，二取代和单取代的QX显示出越来越弱的拮抗作

  DOI：

  10.1021/jm00022a003
• 作为产物：
  描述：

  3’,4’-二氟乙酰苯胺 在 盐酸 、 硫酸 、 硝酸 、 tin(ll) chloride 作用下， 以 盐酸 、 乙醇 为溶剂， 反应 7.2h， 生成 4,5-二氟苯-1,2-二胺
  参考文献：
  名称：

  质子泵抑制剂的研究。I. 8-[（2-苯并咪唑基）亚磺酰基] -5,6,7,8-四氢喹啉和相关化合物的合成。

  摘要：

  合成了许多8-[（2-苯并咪唑基）亚磺酰基] -5,6,7,8-四氢喹啉，并检查了它们的（H + + K +）腺苷三磷酸酶ATPase抑制和分泌活性。这些亚磺酰基化合物可以被认为是2-[（（2-吡啶基）甲基亚磺酰基]苯并咪唑类抗分泌剂的刚性类似物。所有测试的化合物均为（H + + K +）ATPase的有效抑制剂。大多数化合物还抑制组胺诱导的大鼠胃酸分泌。其中，发现8-[（5-氟-2-苯并咪唑基）亚磺酰基] -3-甲基-5,6,7,8-四氢喹啉（XIVm）具有最强的活性。讨论了构效关系。

  DOI：

  10.1248/cpb.37.1517
• 作为试剂：
  描述：

  4,5-二氟-2-硝基苯胺 、 氢气 、 乙醛酸水合物 在 钯 4,5-二氟苯-1,2-二胺 、 氮气 、 sodium hydroxide 、 碳 、 盐酸 、 水 作用下， 以 乙醇 、 水 为溶剂， 反应 2.0h， 以to afford 1.25 g (55 %) of 6,7-difluoroquinoxalin-2(1H)-one melting at 284°-85° C的产率得到6,7-difluoroquinoxalin-2(1H)-one
  参考文献：
  名称：

  Quinoxaline-2,3-dione compounds and their preparation and use

  摘要：

  1-羧基烷基喹啉并[2,3-]吡咯烷-2,3-二酮化合物或其互变异构体，其化学式为##STR1## 其中R代表氢，C.sub.1-6-烷基，包括支链，或芳基烷基，n代表0到5的数字；R.sup.4代表氢或羟基；R.sup.5，R.sup.6，R.sup.7和R.sup.8独立地代表氢，硝基，卤素，烷氧基，芳氧基，芳基烷氧基，C.sub.1-6-烷基，包括支链，或芳基；R.sup.9代表氢，低烷基或芳基；R.sup.10代表氢或烷基。这些化合物在神经和精神疾病的治疗中有用。

  公开号：

  US05166155A1

文献信息

• [EN] NEUROACTIVE STEROIDS, COMPOSITIONS, AND USES THEREOF<br/>[FR] STÉROÏDES NEUROACTIFS, COMPOSITIONS ET UTILISATIONS
  申请人：SAGE THERAPEUTICS INC

  公开号：WO2015027227A1

  公开（公告）日：2015-02-26

  Described herein are neuroactive steroids of the Formula (I): or a pharmaceutically acceptable salt thereof; wherein -------, R1, R2, R5, A and L are as defined herein. Such compounds are envisioned, in certain embodiments, to behave as GABA modulators. The present invention also provides pharmaceutical compositions comprising a compound of the present invention and methods of use and treatment, e.g., such for inducing sedation and/or anesthesia.

  本文描述了化学式（I）中的神经活性类固醇或其药用可接受盐；其中-------，R1，R2，R5，A和L如本文所定义。在某些实施例中，预期这些化合物将表现为GABA调节剂。本发明还提供了包括本发明化合物的药物组合物以及使用和治疗方法，例如用于诱导镇静和/或麻醉的方法。
• Trinuclear {Co²⁺–M³⁺–Co²⁺} complexes catalyze reduction of nitro compounds
  作者：Sumit Srivastava、Manvender S. Dagur、Afsar Ali、Rajeev Gupta

  DOI：10.1039/c5dt03442f

  日期：——

  characterization of trinuclear Co2+–Co3+–Co2+} and Co2+–Fe3+–Co2+} complexes with accessible peripheral Co(II) ions. Both trinuclear complexes function as efficient reusable heterogeneous catalysts for the selective reduction of assorted nitro compounds to the corresponding amines. The mechanistic investigations suggest the involvement of a Co(II)–Co(I) cycle in the catalysis.

  这项工作介绍了三核Co 2+ –Co 3+ –Co 2+ }和Co 2+ –Fe 3+ –Co 2+ }络合物的合成和表征，这些络合物具有可利用的外围Co（II）离子。两种三核配合物均起着有效的可重复使用的多相催化剂的作用，用于将各种硝基化合物选择性还原为相应的胺。机理研究表明，Co（II）–Co（I）循环参与了催化作用。
• [EN] NEW BENZIMIDAZOLE DERIVATIVES<br/>[FR] NOUVEAUX DÉRIVÉS DE BENZIMIDAZOLE
  申请人：HOFFMANN LA ROCHE

  公开号：WO2010043513A1

  公开（公告）日：2010-04-22

  The invention is concerned with novel benzimidazole derivatives of formula (I) wherein R1 to R6 are as defined in the description and in the claims, as well as physiologically acceptable salts and esters thereof. These compounds can be used as medicaments.

  这项发明涉及式(I)的新型苯并咪唑衍生物，其中R1至R6如描述和索赔中所定义，以及其生理上可接受的盐和酯。这些化合物可用作药物。
• [EN] SUBSTITUTED 2-AZABICYCLO[3.1.1]HEPTANE AND 2-AZABICYCLO[3.2.1]OCTANE DERIVATIVES AS OREXIN RECEPTOR ANTAGONISTS<br/>[FR] DÉRIVÉS DE 2-AZABICYCLO[3.1.1]HEPTANE ET DE 2-AZABICYCLO[3.2.1]OCTANE SUBSTITUÉS EN TANT QU'ANTAGONISTES DU RÉCEPTEUR DE L'OREXINE
  申请人：CHRONOS THERAPEUTICS LTD

  公开号：WO2019043407A1

  公开（公告）日：2019-03-07

  There is provided a compound of formula (I), wherein L1 to L3, R1 to R4, X, A and B have meanings given in the description, and pharmaceutically acceptable salts, solvates and prodrugs thereof, which compounds are useful as antagonists of the orexin-1 and orexin-2 receptors or as selective antagonists of the orexin-1 receptor, and thus, in particular, in the treatment or prevention of inter alia substance dependence, addiction, anxiety disorders, panic disorders, binge eating, compulsive disorders, impulse control disorders, cognitive impairment and Alzheimer's disease.

  提供一种化合物，其化学式为（I），其中L1至L3，R1至R4，X，A和B的含义如描述中所给，并且其药学上可接受的盐、溶剂合物和前药，这些化合物可用作促进睡眠素-1和促进睡眠素-2受体的拮抗剂或作为促进睡眠素-1受体的选择性拮抗剂，因此，特别适用于治疗或预防物质依赖、成瘾、焦虑障碍、恐慌障碍、暴饮暴食、强迫障碍、冲动控制障碍、认知障碍和阿尔茨海默病等疾病。
• Synthesis of Novel Halogenated Heterocycles Based on o-Phenylenediamine and Their Interactions with the Catalytic Subunit of Protein Kinase CK2
  作者：Maria Winiewska-Szajewska、Agnieszka Monika Maciejewska、Elżbieta Speina、Jarosław Poznański、Daniel Paprocki

  DOI：10.3390/molecules26113163

  日期：——

  Protein kinase CK2 is a highly pleiotropic protein kinase capable of phosphorylating hundreds of protein substrates. It is involved in numerous cellular functions, including cell viability, apoptosis, cell proliferation and survival, angiogenesis, or ER-stress response. As CK2 activity is found perturbed in many pathological states, including cancers, it becomes an attractive target for the pharma

  蛋白激酶CK2是高度多效性蛋白激酶，能够磷酸化数百种蛋白底物。它涉及许多细胞功能，包括细胞活力，凋亡，细胞增殖和存活，血管生成或ER应激反应。由于发现CK2活性在包括癌症在内的许多病理状态中受到干扰，因此它成为该药的有吸引力的靶标。已经开发了许多低质量的ATP竞争性抑制剂，其中大多数已被卤化。我们测试了六种系列卤代杂环配体的结合，这些配体衍生自可商购的4,5-二卤代苯-1,2-二胺。选择这些配体系列以使支架作用与直接归因于卤素原子存在的疏水相互作用分离。最初使用计算机分子对接技术来测试每种配体在CK2的ATP结合位点结合的能力。将HPLC衍生的配体疏水性数据与通过小体积差示扫描荧光法（nanoDSF）评估的结合亲和力进行比较。我们确定了三个有希望的配体支架，其中两个尚未被描述为CK2抑制剂，但可能导致有效的CK2激酶抑制剂。已经确定了在nanoDSF分析中被鉴定为最有前途的八种化合物对CK