2,4-二氯-3-碘吡啶 | 343781-36-2

• 物质功能分类: 医药中间体 - 原料药中间体
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 中文名称: 2,4-二氯-3-碘吡啶
• 中文别名: 2,4-二氯-3-碘代-吡啶；2.4-二氯-3-碘吡啶
• 英文名称: 2,4-dichloro-3-iodopyridine
• CAS: 343781-36-2
• 化学式: C₅H₂Cl₂IN
• mdl: MFCD09033756
• 分子量: 273.888
• InChiKey: OKXJLNYZTJLVJZ-UHFFFAOYSA-N

物化性质

• 熔点：
  90-94 °C
• 沸点：
  290.3±35.0 °C(Predicted)
• 密度：
  2.129±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  9
• 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：
  12.9
• 氢给体数：
  0
• 氢受体数：
  1

安全信息

• 危险等级：
  IRRITANT
• 海关编码：
  2933399090
• WGK Germany：
  3
• 危险品运输编号：
  UN 2811
• 危险性防范说明：
  P280,P305+P351+P338
• 危险性描述：
  H317,H319
• 储存条件：
  室温且干燥

SDS

---

Section 1. IDENTIFICATION OF THE SUBSTANCE/MIXTURE
Product identifiers
Product name : 2,4-Dichloro-3-iodopyridine
CAS-No. : 343781-36-2
Relevant identified uses of the substance or mixture and uses advised against
Identified uses : Laboratory chemicals, Manufacture of substances

---

Section 2. HAZARDS IDENTIFICATION
Classification of the substance or mixture
Classification according to Regulation (EC) No 1272/2008 [EU-GHS/CLP]
Acute toxicity, Oral (Category 4)
Serious eye damage (Category 1)
Classification according to EU Directives 67/548/EEC or 1999/45/EC
Harmful if swallowed. Risk of serious damage to eyes.
Label elements
Labelling according Regulation (EC) No 1272/2008 [CLP]
Pictogram
Signal word Danger
Hazard statement(s)
H302 Harmful if swallowed.
H318 Causes serious eye damage.
Precautionary statement(s)
P280 Wear protective gloves/ eye protection/ face protection.
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove
contact lenses, if present and easy to do. Continue rinsing.
Supplemental Hazard none
Statements
According to European Directive 67/548/EEC as amended.
Hazard symbol(s)
R-phrase(s)
R22 Harmful if swallowed.
R41 Risk of serious damage to eyes.
S-phrase(s)
S26 In case of contact with eyes, rinse immediately with plenty of water and
seek medical advice.
S39 Wear eye/face protection.
Other hazards - none

---

Section 3. COMPOSITION/INFORMATION ON INGREDIENTS
Substances
Formula : C5H2Cl2IN
Molecular Weight : 249,80 g/mol
Component Concentration
2,4-Dichloro-3-iodopyridine
CAS-No. 343781-36-2 -

---

Section 4. FIRST AID MEASURES
Description of first aid measures
General advice
Consult a physician. Show this safety data sheet to the doctor in attendance.
If inhaled
If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.
In case of skin contact
Wash off with soap and plenty of water. Consult a physician.
In case of eye contact
Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
If swallowed
Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.
Most important symptoms and effects, both acute and delayed
To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly
investigated.
Indication of any immediate medical attention and special treatment needed
no data available

---

Section 5. FIRE-FIGHTING MEASURES
Extinguishing media
Suitable extinguishing media
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Special hazards arising from the substance or mixture
no data available
Advice for firefighters
Wear self contained breathing apparatus for fire fighting if necessary.
Further information
no data available

---

Section 6. ACCIDENTAL RELEASE MEASURES
Personal precautions, protective equipment and emergency procedures
Use personal protective equipment. Avoid dust formation. Avoid breathing vapors, mist or gas. Ensure
adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust.
Environmental precautions
Do not let product enter drains.
Methods and materials for containment and cleaning up
Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed
containers for disposal.
Reference to other sections
For disposal see section 13.

---

Section 7. HANDLING AND STORAGE
Precautions for safe handling
Avoid contact with skin and eyes. Avoid formation of dust and aerosols.
Provide appropriate exhaust ventilation at places where dust is formed.
Conditions for safe storage, including any incompatibilities
Store in cool place. Keep container tightly closed in a dry and well-ventilated place.
Specific end uses
no data available

---

Section 8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Control parameters
Components with workplace control parameters
Exposure controls
Appropriate engineering controls
Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at
the end of workday.
Personal protective equipment
Eye/face protection
Face shield and safety glasses Use equipment for eye protection tested and approved under
appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protection
Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique
(without touching glove's outer surface) to avoid skin contact with this product. Dispose of
contaminated gloves after use in accordance with applicable laws and good laboratory practices.
Wash and dry hands.
The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the
standard EN 374 derived from it.
Body Protection
Complete suit protecting against chemicals, The type of protective equipment must be selected
according to the concentration and amount of the dangerous substance at the specific workplace.
Respiratory protection
Where risk assessment shows air-purifying respirators are appropriate use a full-face particle
respirator type N100 (US) or type P3 (EN 143) respirator cartridges as a backup to engineering
controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use
respirators and components tested and approved under appropriate government standards such as
NIOSH (US) or CEN (EU).

---

Section 9. PHYSICAL AND CHEMICAL PROPERTIES
Information on basic physical and chemical properties
a) Appearance Form: solid
b) Odour no data available
c) Odour Threshold no data available
d) pH no data available
e) Melting point/freezing Melting point/range: 90 - 94 °C
point
f) Initial boiling point and no data available
boiling range
g) Flash point no data available
h) Evaporation rate no data available
i) Flammability (solid, gas) no data available
j) Upper/lower no data available
flammability or
explosive limits
k) Vapour pressure no data available
l) Vapour density 8,62 - (Air = 1.0)
m) Relative density no data available
n) Water solubility no data available
o) Partition coefficient: n- log Pow: 3,265
octanol/water
p) Autoignition no data available
temperature
q) Decomposition no data available
temperature
r) Viscosity no data available
s) Explosive properties no data available
t) Oxidizing properties no data available
Other safety information
no data available

---

Section 10. STABILITY AND REACTIVITY
Reactivity
no data available
Chemical stability
no data available
Possibility of hazardous reactions
no data available
Conditions to avoid
no data available
Incompatible materials
Strong oxidizing agents
Hazardous decomposition products
Other decomposition products - no data available

---

Section 11. TOXICOLOGICAL INFORMATION
Information on toxicological effects
Acute toxicity
no data available
Skin corrosion/irritation
no data available
Serious eye damage/eye irritation
no data available
Respiratory or skin sensitization
no data available
Germ cell mutagenicity
no data available
Carcinogenicity
IARC: No component of this product present at levels greater than or equal to 0.1% is identified as
probable, possible or confirmed human carcinogen by IARC.
Reproductive toxicity
no data available
Specific target organ toxicity - single exposure
no data available
Specific target organ toxicity - repeated exposure
no data available
Aspiration hazard
no data available
Potential health effects
Inhalation May be harmful if inhaled. May cause respiratory tract irritation.
Ingestion Harmful if swallowed.
Skin May be harmful if absorbed through skin. May cause skin irritation.
Eyes Causes eye burns.
Signs and Symptoms of Exposure
To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly
investigated.
Additional Information
RTECS: Not available

---

Section 12. ECOLOGICAL INFORMATION
Toxicity
no data available
Persistence and degradability
no data available
Bioaccumulative potential
no data available
Mobility in soil
no data available
Results of PBT and vPvB assessment
no data available
Other adverse effects
no data available

---

Section 13. DISPOSAL CONSIDERATIONS
Waste treatment methods
Product
Offer surplus and non-recyclable solutions to a licensed disposal company. Dissolve or mix the material
with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber.
Contaminated packaging
Dispose of as unused product.

---

Section 14. TRANSPORT INFORMATION
UN number
ADR/RID: 2811 IMDG: 2811 IATA: 2811
UN proper shipping name
ADR/RID: TOXIC SOLID, ORGANIC, N.O.S. (2,4-Dichloro-3-iodopyridine)
IMDG: TOXIC SOLID, ORGANIC, N.O.S. (2,4-Dichloro-3-iodopyridine)
IATA: Toxic solid, organic, n.o.s. (2,4-Dichloro-3-iodopyridine)
Transport hazard class(es)
ADR/RID: 6.1 IMDG: 6.1 IATA: 6.1
Packaging group
ADR/RID: III IMDG: III IATA: III
Environmental hazards
ADR/RID: no IMDG Marine pollutant: no IATA: no
Special precautions for user
no data available

---

---

SECTION 15 - REGULATORY INFORMATION
N/A

---

SECTION 16 - ADDITIONAL INFORMATION
N/A

制备方法与用途

用途

2,4-二氯-3-碘吡啶可作为医药合成中间体，以2,4-二氯吡啶为反应原料，与正丁基锂和碘反应制备而得。它可用于制备另一中间体2,4-二氯-3-三氟甲基吡啶。此外，该化合物也可由2,4-二氯吡啶进行碘代得到，或者由2,4-二羟基-3-碘吡啶与三氯氧磷进行氯代反应而制备。

制备

在氮气气氛下，将2,4-二氯吡啶（5.2g，35.137mmol）和二异丙胺（3.911g，38.651mmol）溶解于干THF（40ml）中，并冷却至-78℃。滴加正丁基锂（24.157ml，38.651mmol，1.6M的己烷溶液），搅拌45分钟后，再滴加碘（9.81g，38.651mmol）溶解于干THF（20ml）中的溶液。将反应混合物在-78℃下搅拌1小时后，允许其自然升温至室温，并用乙酸乙酯（EtOAc）稀释。使用NH4Cl（水性饱和溶液）和Na2S2O3（水性饱和溶液）进行淬灭处理。分离有机层并依次用NaHCO3（水性饱和溶液）洗涤，干燥（Na2SO4），最后在真空中浓缩。将粗产物通过柱色谱法（硅胶；庚烷/DCM比例从0%到最高可达20%，作为洗脱液）进行纯化。

反应信息

• 作为反应物：
  描述：

  2,4-二氯-3-碘吡啶 在 copper(l) iodide 、 四(三苯基膦)钯 甲醇 、 sodium tetrahydroborate 、 sodium periodate 、 四氧化锇 、 sodium hydride 、 碳酸氢钠 、 一水合肼 、 三乙胺 、 N,N-二异丙基乙胺 、 sodium iodide 、 三氯氧磷 作用下， 以 1,4-二氧六环 、 二氯甲烷 、 水 、 N,N-二甲基甲酰胺 、 乙腈 、 mineral oil 、 叔丁醇 为溶剂， 反应 30.22h， 生成 (2S,4S)-N-{[3-(cyclopropylmethyl)-8-(trifluoromethyl)[1,2,4]triazolo[4,3-a]pyridin-7-yl]methyl}-2-phenyltetrahydro-2H-pyran-4-amine
  参考文献：
  名称：

  [EN] 1,2,4-TRIAZOLO[4,3-a]PYRIDINE DERIVATIVES AND THEIR USE AS POSITIVE ALLOSTERIC MODULATORS OF MGLUR2 RECEPTORS
  [FR] DÉRIVÉS DE 1,2,4-TRIAZOLO[4,3-A]PYRIDINE ET LEUR UTILISATION EN TANT QUE MODULATEURS ALLOSTÉRIQUES POSITIFS DES RÉCEPTEURS MGLUR2

  摘要：

  本发明涉及式(I)的新三唑[4,3-a]吡啶衍生物，其中所有基团均如权利要求中所定义。根据发明的化合物是代谢型谷氨酸受体2型("mGluR2")的正变构调节剂，用于治疗或预防与谷氨酸功能障碍相关的神经和精神障碍以及涉及mGluR2亚型的代谢型受体的疾病。本发明还涉及包含这些化合物的药物组合物，制备这些化合物和组合物的方法，以及使用这些化合物预防或治疗涉及mGluR2的神经和精神障碍和疾病。

  公开号：

  WO2012062750A1
• 作为产物：
  描述：

  2,4-二氯吡啶 在 正丁基锂 、 二异丙胺 、 碘 作用下， 以 四氢呋喃 、 hexanes 为溶剂， 反应 1.75h， 以81%的产率得到2,4-二氯-3-碘吡啶
  参考文献：
  名称：

  [EN] 7-ARYL-1,2,4-TRIAZOLO[4,3-A]PYRIDINE DERIVATIVES AND THEIR USE AS POSITIVE ALLOSTERIC MODULATORS OF MGLUR2 RECEPTORS
  [FR] DÉRIVÉS DE LA 7-ARYL-1,2,4-TRIAZOLO [4,3-A] PYRIDINE ET LEUR UTILISATION EN TANT QUE MODULATEURS ALLOSTÉRIQUES POSITIFS DES RÉCEPTEURS MGLUR2

  摘要：

  本发明涉及新型Formula (I)的三唑并[4,3-a]吡啶衍生物，其中所有基团如权利要求中所定义。根据本发明的化合物是代谢型谷氨酸受体亚型2 ("mGluR2")的阳性变构调节剂，适用于治疗或预防与谷氨酸功能障碍有关的神经和精神疾病，以及mGluR2代谢型受体亚型参与的疾病。本发明还涉及包括这些化合物的药物组合物，用于制备这些化合物和组合物的方法，以及利用这些化合物预防或治疗与mGluR2有关的神经和精神疾病和疾病的用途。

  公开号：

  WO2010130423A1

文献信息

• [EN] 1,2,4-TRIAZOLO[4,3-A]PYRIDINE DERIVATIVES AND THEIR USE AS POSITIVE ALLOSTERIC MODULATORS OF MGLUR2 RECEPTORS<br/>[FR] DÉRIVÉS DE LA 1,2,4-TRIAZOLO [4,3-A] PYRIDINE ET LEUR UTILISATION EN TANT QUE MODULATEURS ALLOSTÉRIQUES POSITIFS DES RÉCEPTEURS MGLUR2
  申请人：ORTHO MCNEIL JANSSEN PHARM

  公开号：WO2010130422A1

  公开（公告）日：2010-11-18

  The present invention relates to novel triazolo[4,3-a]pyridine derivatives of Formula (I) wherein all radicals are as defined in the claims. The compounds according to the invention are positive allosteric modulators of the metabotropic glutamate receptor subtype 2 ("mGluR2"), which are useful for the treatment or prevention of neurological and psychiatric disorders associated with glutamate dysfunction and diseases in which the mGluR2 subtype of metabotropic receptors is involved. The invention is also directed to pharmaceutical compositions comprising such compounds, to processes to prepare such compounds and compositions, and to the use of such compounds for the prevention or treatment of neurological and psychiatric disorders and diseases in which mGluR2 is involved.

  本发明涉及新型三唑并[4,3-a]吡啶衍生物的公式(I)，其中所有基团如权利要求中所定义。根据本发明的化合物是代谢型谷氨酸受体亚型2（"mGluR2"）的阳性变构调节剂，对于治疗或预防与谷氨酸功能障碍相关的神经和精神疾病以及代谢型受体的mGluR2亚型参与的疾病具有用处。本发明还涉及包括这种化合物的药物组合物，用于制备这种化合物和组合物的方法，以及利用这种化合物预防或治疗与mGluR2有关的神经和精神疾病和疾病。
• RADIOLABELLED mGluR2 PET LIGANDS
  申请人：Andrés-Gil José Ignacio

  公开号：US20130230459A1

  公开（公告）日：2013-09-05

  The present invention relates to novel, selective, radiolabelled mGluR2 ligands which are useful for imaging and quantifying the metabotropic glutamate receptor mGluR2 in tissues, using positron-emission tomography (PET). The invention is also directed to compositions comprising such compounds, to processes for preparing such compounds and compositions, to the use of such compounds and compositions for imaging a tissue, cells or a host, in vitro or in vivo and to precursors of said compounds.

  本发明涉及新型的、选择性的、放射性标记的mGluR2配体，这些配体可用于使用正电子发射断层扫描（PET）在组织中成像和量化代谢型谷氨酸受体mGluR2。本发明还涉及包含这些化合物的组合物，制备这些化合物和组合物的方法，使用这些化合物和组合物在体外或体内成像组织、细胞或宿主，以及所述化合物的前体。
• [EN] SUBSTITUTED PYRAZOLYL[4,3-C]PYRIDINECOMPOUNDS AS RET KINASE INHIBITORS<br/>[FR] COMPOSÉS DE PYRAZOLYL[4,3-C]PYRIDINE SUBSTITUÉS UTILISÉS EN TANT QU'INHIBITEURS DE LA KINASE RET
  申请人：ARRAY BIOPHARMA INC

  公开号：WO2019143994A1

  公开（公告）日：2019-07-25

  Provided herein are compounds of the Formula I: and tautomers and pharmaceutically acceptable salts and solvates thereof, wherein R1, R2 and R3 have the meanings given in the specification, which are inhibitors of RET kinase and are useful in the treatment and prevention of diseases which can be treated with a RET kinase inhibitor, including RET-associated diseases and disorders.

  提供以下式I的化合物：及其互变异构体和药用可接受的盐和溶剂化物，其中R1、R2和R3具有说明书中给出的含义，它们是RET激酶的抑制剂，可用于治疗和预防可通过RET激酶抑制剂治疗的疾病，包括RET相关疾病和失调。
• [EN] HETEROAROMATIC COMPOUNDS AND THEIR USE AS DOPAMINE D1 LIGANDS<br/>[FR] COMPOSÉS HÉTÉRO-AROMATIQUES ET LEUR UTILISATION EN TANT QUE LIGANDS D1 DE LA DOPAMINE
  申请人：PFIZER

  公开号：WO2014207601A1

  公开（公告）日：2014-12-31

  The present invention provides, in part, compounds of Formula (I) and pharmaceutically acceptable salts thereof; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds or salts, and their uses for treating D1 -mediated (or D1 -associated) disorders including, e.g., schizophrenia (e.g., its cognitive and negative symptoms), cognitive impairment (e.g., cognitive impairment associated with schizophrenia, AD, PD, or pharmacotherapy therapy), age-related cognitive decline, dementia, and Parkinson's disease.

  本发明部分提供了Formula (I)的化合物及其药用盐；其制备方法；制备中使用的中间体；含有这种化合物或盐的组合物，以及它们用于治疗D1介导的（或与D1相关的）疾病，包括但不限于精神分裂症（例如，其认知和消极症状）、认知障碍（例如，与精神分裂症、阿尔茨海默病、帕金森病或药物治疗相关的认知障碍）、年龄相关的认知衰退、痴呆症和帕金森病。
• [EN] INHIBITOR OF BTK AND MUTANTS THEREOF<br/>[FR] INHIBITEURS DE BTK ET LEURS MUTANTS
  申请人：NEWAVE PHARMACEUTICAL INC

  公开号：WO2020176403A1

  公开（公告）日：2020-09-03

  The disclosure includes compounds of Formula (I) (1) wherein Q0, Q1, Q2, Q3, Q4, Z, W, i, j, m, n, Warhead, R0, R1, R3, R4, R5, R6, and R7, are defined herein. Also disclosed is a method for treating a neoplastic disease, autoimmune disease, and inflammatory disorder with these compounds.

  该披露包括式（I）（1）的化合物，其中Q0、Q1、Q2、Q3、Q4、Z、W、i、j、m、n、Warhead、R0、R1、R3、R4、R5、R6和R7在此处被定义。还披露了使用这些化合物治疗恶性肿瘤疾病、自身免疫疾病和炎症性疾病的方法。