2-甲硫基嘧啶 | 823-09-6

• 物质功能分类: 医药中间体 - 杂环化合物 - 嘧啶类化合物
• 分子结构分类: 有机化合物 - 有机硫化合物 - 硫醚类
• 中文名称: 2-甲硫基嘧啶
• 中文别名: 2-(甲基硫代)嘧啶
• 英文名称: 2-(methylsulfanyl)pyrimidine
• 英文别名: 2-methylthio-pyrimidine；2-Methylmercapto-pyrimidin；2-Methylthio-pyrimidin；2-(Methylthio)pyrimidine；2-methylsulfanylpyrimidine
• CAS: 823-09-6
• 化学式: C₅H₆N₂S
• mdl: MFCD09025802
• 分子量: 126.182
• InChiKey: FOEMIZSFFWGXHX-UHFFFAOYSA-N

物化性质

• 沸点：
  216℃
• 密度：
  1.19
• 闪点：
  84℃

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  8
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  51.1
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• 安全说明：
  S26,S36/37/39
• 危险类别码：
  R36,R36/37/38
• 海关编码：
  2933599090
• 储存条件：
  | 室温 |

SDS

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SECTION 1: Identification of the substance/mixture and of the company/undertaking
Product identifiers
Product name : 2-Methylthiopyrimidine
REACH No. : A registration number is not available for this substance as the substance
or its uses are exempted from registration, the annual tonnage does not
require a registration or the registration is envisaged for a later
registration deadline.
Relevant identified uses of the substance or mixture and uses advised against
Identified uses : Laboratory chemicals, Manufacture of substances

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SECTION 2: Hazards identification
Classification of the substance or mixture
Classification according to Regulation (EC) No 1272/2008
Acute toxicity, Oral (Category 4), H302
Eye irritation (Category 2), H319
For the full text of the H-Statements mentioned in this Section, see Section 16.
Classification according to EU Directives 67/548/EEC or 1999/45/EC
Xn Harmful R22
R36
For the full text of the R-phrases mentioned in this Section, see Section 16.
Label elements
Labelling according Regulation (EC) No 1272/2008
Pictogram
Signal word Warning
Hazard statement(s)
H302 Harmful if swallowed.
H319 Causes serious eye irritation.
Precautionary statement(s)
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
Other hazards
This substance/mixture contains no components considered to be either persistent, bioaccumulative and
toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.

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SECTION 3: Composition/information on ingredients
Substances
Molecular weight : 126,18 g/mol
Hazardous ingredients according to Regulation (EC) No 1272/2008
Component Classification Concentration
2-Methylthiopyrimidine
Acute Tox. 4; Eye Irrit. 2; <= 100 %
H302, H319
Hazardous ingredients according to Directive 1999/45/EC
Component Classification Concentration
2-Methylthiopyrimidine
Xn, R22R36 <= 100 %
For the full text of the H-Statements and R-Phrases mentioned in this Section, see Section 16

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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
The most important known symptoms and effects are described in the labelling (see section 2.2) and/or in
section 11
Indication of any immediate medical attention and special treatment needed
No data available

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SECTION 5: Firefighting 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
Nature of decomposition products not known.
Advice for firefighters
Wear self-contained breathing apparatus for firefighting if necessary.
Further information
No data available

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SECTION 6: Accidental release measures
Personal precautions, protective equipment and emergency procedures
Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure
adequate ventilation. Avoid breathing dust.
For personal protection see section 8.
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.

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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.
For precautions see section 2.2.
Conditions for safe storage, including any incompatibilities
Store in cool place. Keep container tightly closed in a dry and well-ventilated place.
Storage class (TRGS 510): Non Combustible Solids
Specific end use(s)
Apart from the uses mentioned in section 1.2 no other specific uses are stipulated

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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
Safety glasses with side-shields conforming to EN166 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
For nuisance exposures use type P95 (US) or type P1 (EU EN 143) particle respirator.For higher
level protection use type OV/AG/P99 (US) or type ABEK-P2 (EU EN 143) respirator cartridges.
Use respirators and components tested and approved under appropriate government standards
such as NIOSH (US) or CEN (EU).
Control of environmental exposure
Do not let product enter drains.

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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 No data available
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 No data available
m) Relative density No data available
n) Water solubility No data available
o) Partition coefficient: n- No data available
octanol/water
p) Auto-ignition 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

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SECTION 10: Stability and reactivity
Reactivity
No data available
Chemical stability
Stable under recommended storage conditions.
Possibility of hazardous reactions
No data available
Conditions to avoid
No data available
Incompatible materials
Strong oxidizing agents
Hazardous decomposition products
In the event of fire: see section 5

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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 sensitisation
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
Additional Information
RTECS: Not available
To the best of our knowledge, the chemical, physical, and toxicological properties have not been
thoroughly investigated.

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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
This substance/mixture contains no components considered to be either persistent, bioaccumulative and
toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.
Other adverse effects
No data available

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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.

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SECTION 14: Transport information
UN number
ADR/RID: - IMDG: - IATA: -
UN proper shipping name
ADR/RID: Not dangerous goods
IMDG: Not dangerous goods
IATA: Not dangerous goods
Transport hazard class(es)
ADR/RID: - IMDG: - IATA: -
Packaging group
ADR/RID: - IMDG: - IATA: -
Environmental hazards
ADR/RID: no IMDG Marine pollutant: no IATA: no
Special precautions for user
No data available

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SECTION 15: Regulatory information
This safety datasheet complies with the requirements of Regulation (EC) No. 1907/2006.
Safety, health and environmental regulations/legislation specific for the substance or mixture
No data available
Chemical Safety Assessment
For this product a chemical safety assessment was not carried out

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SECTION 16: Other information
Full text of H-Statements referred to under sections 2 and 3.
Acute Tox. Acute toxicity
Eye Irrit. Eye irritation
H302 Harmful if swallowed.
H319 Causes serious eye irritation.
Full text of R-phrases referred to under sections 2 and 3
Xn Harmful
R22 Harmful if swallowed.
R36 Irritating to eyes.
Further information
Copyright 2014 Co. LLC. License granted to make unlimited paper copies for internal use
only.
The above information is believed to be correct but does not purport to be all inclusive and shall be
used only as a guide. The information in this document is based on the present state of our knowledge
and is applicable to the product with regard to appropriate safety precautions. It does not represent any
guarantee of the properties of the product. Corporation and its Affiliates shall not be held
liable for any damage resulting from handling or from contact with the above product. See
and/or the reverse side of invoice or packing slip for additional terms and conditions of sale.

反应信息

• 作为反应物：
  描述：

  2-甲硫基嘧啶 在 四甲基乙二胺 、 zinc(II) chloride 、 碘 作用下， 以 四氢呋喃 为溶剂， 反应 2.0h， 以77%的产率得到4-碘-2-甲基磺酰基嘧啶
  参考文献：
  名称：

  Azine and Diazine Functionalization Using 2,2,6,6-Tetramethylpiperidino-Based Lithium–Metal Combinations: Application to the Synthesis of 5,9-Disubstituted Pyrido[3′,2′:4,5]pyrrolo[1,2-c]pyrimidines

  摘要：

  The synthesis of triaryl methanols was investigated by reacting different 4-metalated 2-substituted pyrimidines with diaryl ketones, the latter being generated by deprotocupration-aroylation of azine and diazine substrates. Cyclization of the triaryl methanols thus obtained afforded pyrido[3,2:4,5]pyrrolo[1,2-c]pyrimidines, which were evaluated for kinase inhibition and antiproliferative activities in melanoma cells.

  DOI：

  10.1055/s-0035-1560496
• 作为产物：
  描述：

  2-甲硫基-4-氯嘧啶 在 ammonium hydroxide 、 sodium chloride 、 锌 作用下， 生成 2-甲硫基嘧啶
  参考文献：
  名称：

  Matsukawa; Ohta, Yakugaku Zasshi/Journal of the Pharmaceutical Society of Japan, 1950, vol. 70, p. 137

  摘要：

  DOI：

文献信息

• Nickel‐Catalyzed Inter‐ and Intramolecular Aryl Thioether Metathesis by Reversible Arylation
  作者：Tristan Delcaillau、Alessandro Bismuto、Zhong Lian、Bill Morandi

  DOI：10.1002/anie.201910436

  日期：2020.1.27

  A nickel-catalyzed aryl thioether metathesis has been developed to access high-value thioethers. 1,2-Bis(dicyclohexylphosphino)ethane (dcype) is essential to promote this highly functional-group-tolerant reaction. Furthermore, synthetically challenging macrocycles could be obtained in good yield in an unusual example of ring-closing metathesis that does not involve alkene bonds. In-depth organometallic

  已经开发出镍催化的芳基硫醚复分解反应来获得高价值的硫醚。1,2-双（二环己基膦基）乙烷（dcype）对于促进这种高度官能团耐受的反应至关重要。此外，在不涉及烯键的闭环易位的不寻常实例中，可以高收率获得具有合成挑战性的大环化合物。深入的有机金属研究支持产物形成的可逆Ni0 / NiII途径。总体而言，这项工作不仅为以前的基于Pd的催化体系提供了更可持续的替代方法，而且还提出了与异常单键易位反应的进一步开发和应用高度相关的新应用和机理信息。
• Photoredox and Weak Brønsted Base Dual Catalysis: Alkylation of α-Thio Alkyl Radicals
  作者：Edwin Alfonzo、Sudhir M. Hande

  DOI：10.1021/acscatal.0c03851

  日期：2020.11.6

  activation of thioethers to α-thio alkyl radicals and their addition to electron-deficient olefins to afford alkylated products through dual photoredox and weak Brønsted base catalysis. Mechanistic studies are consistent with a two-step activation mechanism, where oxidation of thioethers to their corresponding sulfide radical cations by an acridinium photoredox catalyst is followed with deprotonation by

  我们报道了硫醚对α-硫代烷基的C–H活化作用，以及它们向缺电子烯烃中的加成，从而通过双重光氧化还原和弱布朗斯台德碱催化作用提供烷基化产物。机理研究与两步活化机理一致，在此过程中，ether啶光氧化还原催化剂将硫醚氧化成其相应的硫化物自由基阳离子，然后用三氟乙酸酯进行去质子化，生成α-硫代烷基自由基和三氟乙酸（TFA）。实验研究支持TFA参与导致产品形成的所有后续步骤。
• Decyanative Cross-Coupling of Cyanopyrimidines with O-, S-, and N-Nucleophiles: A Route to Alkoxylpyrimidines, Aminopyrimidines and Alkylthiopyrimidines
  作者：Xiangyang Wei、Caiyang Zhang、Yifei Wang、Qi Zhan、Guiying Qiu、Ling Fan、Guodong Yin

  DOI：10.1002/ejoc.201901364

  日期：2019.11.14

  A cross‐coupling reaction of cyanopyrimidines with aliphatic alcohols, thiols (or S‐alkylisothiourea salts) or amines gives the corresponding alkoxylpyrimidines, aminopyrimidines or alkylthiopyrimidines. The wide substrate scope with excellent yields makes cyanopyrimidines a promising alternative substrate class to the frequently used pyrimidines halides for the formation of C–O, C–S, and C–N bonds

  氰基嘧啶与脂族醇，硫醇（或S-烷基异硫脲盐）或胺的交叉偶联反应可得到相应的烷氧基嘧啶，氨基嘧啶或烷基硫嘧啶。宽范围的底物范围和优异的收率使氰基嘧啶成为用于形成C–O，C–S和C–N键的常用嘧啶卤化物的有前途的替代底物类别。
• Pd- and Ni-Catalyzed Cross-Coupling Reactions of Functionalized Organozinc Reagents with Unsaturated Thioethers
  作者：Laurin Melzig、Albrecht Metzger、Paul Knochel

  DOI：10.1002/chem.201002850

  日期：2011.3.1

  serve as electrophiles in this cross‐coupling reaction. Aryl‐, heteroaryl‐, benzylic, and alkylzinc halides with sensitive functionalities, such as ester, nitrile, or ketone groups react at ambient temperature with unsaturated thioethers using a Ni catalyst. The corresponding Pd‐catalyzed reactions require slightly higher temperatures. Large‐scale cross‐coupling experiments (10–20 mmol) with N‐heterocycles

  在过渡金属催化剂的存在下，各种不饱和硫醚与官能化锌试剂进行了交叉偶联反应。基于Pd（OAc）2或[Ni（acac）2的三种不同的催化体系]和配体S-Phos或DPE-Phos给出了最佳结果。基于吡啶，嘧啶，吡嗪，哒嗪，三嗪，苯并噻唑，苯并恶唑，吡咯或喹唑啉环的N-杂环硫醚，以及硫代甲基乙炔，在该交叉偶联反应中用作亲电子试剂。具有敏感官能团（如酯基，腈基或酮基）的芳基，杂芳基，苄基和烷基锌卤化物在室温下使用Ni催化剂与不饱和硫醚反应。相应的Pd催化反应需要稍高的温度。还报道了具有N杂环的大规模交叉偶联实验（10–20 mmol）。
• Cesium carbonate-promoted synthesis of aryl methyl sulfides using <i>S</i>-methylisothiourea sulfate under transition-metal-free conditions
  作者：Caiyang Zhang、You Zhou、Jintao Huang、Canhui Tu、Xiaoai Zhou、Guodong Yin

  DOI：10.1039/c8ob01758a

  日期：——

  cyclopropylmethylthio groups can be easily introduced into the aromatic rings from the corresponding S-[2-(dimethylamino)ethyl]isothiourea dihydrochloride and S-cyclopropylmethylisothiourea hydrobromide. The possible reaction mechanism is proposed. It is believed that this route to aryl alkyl sulfides is well competitive with currently known methods due to its wide substrate scope, excellent yields, easy

  在碳酸铯的存在下，开发了通过芳基卤化物与可商购的S-甲基异硫脲硫酸盐反应的有效合成芳基甲基硫醚的方法。这种无味且高度结晶的固体可用作恶臭甲硫醇的替代品。在不使用柱色谱分离的情况下，克级反应也可以顺利进行。类似地，2-（二甲基氨基）乙硫基和环丙基甲硫基可容易地从相应的S- [2-（二甲氨基）乙基]异硫脲二盐酸盐和S中引入芳环。-环丙基甲基异硫脲氢溴酸盐。提出了可能的反应机理。据信，由于其广泛的底物范围，优异的收率，易于操作和无过渡金属的条件，该制备芳基烷基硫化物的方法与目前已知的方法具有很好的竞争性。

表征谱图