5-benzylidene-2-thio-barbituric acid - CAS号 27470-61-7

计算性质

辛醇/水分配系数(LogP)：

1.6
重原子数：

16
可旋转键数：

1
环数：

2.0
sp3杂化的碳原子比例：

0.0
拓扑面积：

90.3
氢给体数：

2
氢受体数：

3

安全信息

海关编码：

2933599090

SDS

SDS：4918c85ea093c6f8b52b1c6cee263055

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Section 1. IDENTIFICATION OF THE SUBSTANCE/MIXTURE
Product identifiers
Product name : 5-BENZYLIDENE-2-THIOBARBITURIC ACID
CAS-No. : 27470-61-7
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 3)
Classification according to EU Directives 67/548/EEC or 1999/45/EC
Toxic if swallowed.
Label elements
Labelling according Regulation (EC) No 1272/2008 [CLP]
Pictogram
Signal word Danger
Hazard statement(s)
H301 Toxic if swallowed.
Precautionary statement(s)
P301 + P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/
physician.
Supplemental Hazard none
Statements
According to European Directive 67/548/EEC as amended.
Hazard symbol(s)
R-phrase(s)
R25 Toxic if swallowed.
S-phrase(s)
S45 In case of accident or if you feel unwell, seek medical advice immediately
(show the label where possible).
Other hazards - none

Section 3. COMPOSITION/INFORMATION ON INGREDIENTS
Substances
Formula : C11H8N2O2S
Molecular Weight : 232,26 g/mol
Component Concentration
5-BENZYLIDENE-2-THIOXO-DIHYDRO-PYRIMIDINE-4,6-DIONE
CAS-No. 27470-61-7 -

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. Take victim immediately to hospital. Consult a physician.
In case of eye contact
Flush eyes with water as a precaution.
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
Carbon oxides, nitrogen oxides (NOx), Sulphur oxides
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
Wear respiratory protection. Avoid dust formation. Avoid breathing vapors, mist or gas. Ensure adequate
ventilation. Evacuate personnel to safe areas. Avoid breathing dust.
Environmental precautions
Prevent further leakage or spillage if safe to do so. 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
Avoid contact with skin, eyes and clothing. Wash hands before breaks and immediately after handling the
product.
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 N99 (US) or type P2 (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 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- log Pow: 1,467
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 Toxic if swallowed.
Skin May be harmful if absorbed through skin. May cause skin irritation.
Eyes May cause eye irritation.
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. (5-BENZYLIDENE-2-THIOXO-DIHYDRO-PYRIMIDINE-
4,6-DIONE)
IMDG: TOXIC SOLID, ORGANIC, N.O.S. (5-BENZYLIDENE-2-THIOXO-DIHYDRO-PYRIMIDINE-
4,6-DIONE)
IATA: Toxic solid, organic, n.o.s. (5-BENZYLIDENE-2-THIOXO-DIHYDRO-PYRIMIDINE-4,6-
DIONE)
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
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
no data available

Section 16. OTHER INFORMATION
Further information
Copyright 2011 Co. 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. Co., shall not be held liable for any damage
resulting from handling or from contact with the above product. See 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：

氟里昂-22 、 5-benzylidene-2-thio-barbituric acid 在 potassium hydroxide 作用下，以 N,N-二甲基甲酰胺为溶剂，以20%的产率得到5-benzylidene-6-difluoromethoxy-2-thioxo-2,3-dihydro-(5H)-pyrimidin-4-one

参考文献：

名称：

Synthesis and mechanism of formation of 5-benzylidene-2-thioxo-2,3-dihydro-(1H,5H)-pyrimidine-4,6-diones difluoromethoxy derivatives

摘要：

Reactions of 5-benzylidene-2-thioxo-2,3-dihydro-(1H,5H)-pyrimidine-4,6-diones with a singlet difluorocarbene afford difluoromethoxy derivatives in 20-34% yield. The quantum-chemical analysis of the reaction mechanism showed that N,N-dimethylformamide is involved into the formation of difluoromethoxy derivatives.

DOI：

10.1134/s1070363211020228
作为产物：

描述：

4,6-二羟基-2-巯基嘧啶、苯甲醛以乙醇、水为溶剂，以79%的产率得到5-benzylidene-2-thio-barbituric acid

参考文献：

名称：

发现（Z）-5-（4-甲氧基亚苄基）噻唑烷-2,4-二酮，一种现成的口服活性格列酮，用于治疗伴刀豆球蛋白A诱导的BALB / c小鼠急性肝损伤

摘要：

大量证据表明，单核细胞/巨噬细胞浸润与多种炎性疾病有关，包括急性肝损伤。单核细胞趋化蛋白1（MCP-1）在巨噬细胞募集过程中起着至关重要的作用。我们在此提出了一种小分子文库和一种可行的快速筛选方法，用于评估抑制MCP-1刺激的RAW264.7细胞趋化性的能力。合成和筛选了53个小分子，四种化合物（2g，2h，4f和6h）显示出抑制作用，IC 50值范围为0.72至20.47μM，使用化合物4f是最有效的。进一步的体内研究表明，口服2g，2h，4f或6h可降低ConA诱导的急性肝损伤BALB / c小鼠的丙氨酸氨基转氨酶（ALT）和天冬酰胺转氨酶（AST）的血清水平，尤其是在4f时。组织病理学评估肝脏切片证实4f是一种有效的口服活性化合物，具有抗ConA诱导的BALB / c小鼠急性肝损伤的肝保护作用。

DOI：

10.1021/jm901183d

点击查看最新优质反应信息

文献信息

Microwave‐associate synthesis of Co <sub>3</sub> O <sub>4</sub> nanoparticles as an effcient nanocatalyst for the synthesis of arylidene barbituric and Meldrum's acid derivatives in green media

作者：Mahdieh Yahyazadehfar、Enayatollah Sheikhhosseini、Sayed Ali Ahmadi、Dadkhoda Ghazanfari

DOI：10.1002/aoc.5100

日期：——

conditions using controlled, effective, and facile microwave method. The final nanostructures were characterized by SEM, XRD, and TEM analyses. The products had a small size distribution, homogeneous morphology, and crystallographic structures associated with the formation of Co3O4 nanostructures. Moreover, EDS mapping analysis confirmed the existence of Co and O elements in the final structure, and the

在这项研究中，使用可控，有效且简便的微波方法，在环境适宜的条件下构建了Co 3 O 4纳米催化剂。通过SEM，XRD和TEM分析来表征最终的纳米结构。产物具有较小的尺寸分布，均匀的形态和与Co 3 O 4形成相关的晶体结构纳米结构。此外，EDS作图分析证实了最终结构中存在Co和O元素，并通过VSM研究了样品的磁性。此纳米结构中的催化方法中的应用进一步检查，结果表明，它可作为一种新的候选为亚芳基巴比妥和麦德鲁姆的合成， s至由巴比妥和麦德鲁姆醛的Knoevenagel缩合酸， S酸性中水性介质。这些纳米催化剂的高产率将由纳米结构的性质以及本研究开发的实验程序来证明，这影响了产物的理化特性。
Verjuice as a green and bio-degradable solvent/catalyst for facile and eco-friendly synthesis of 5-arylmethylenepyrimidine-2,4,6-trione, pyrano[2,3-d]pyrimidinone and pyrimido[4,5-d]pyrimidinone derivatives

作者：Niloufar Safari、Farhad Shirini、Hassan Tajik

DOI：10.1007/s13738-018-1565-y

日期：2019.4

of the synthesis of 5-arylmethylenepyrimidine-2,4,6-triones, via Knovenagel condensation reaction between barbituric or thiobarbituric acid and aldehydes. Verjuice is also employed for the effective synthesis of pyrano[2,3-d]pyrimidinone derivatives via a three-component reaction of barbituric acid or its thio analogue, aldehydes and malononitrile. In the same way, pyrimido[4,5-d]pyrimidinone derivatives

Verjuice（未成熟的葡萄汁）是一种有机酸的天然混合物，可通过pH值和TGA分析鉴定，可通过Knovenagel缩合有效地用于促进5-芳基亚甲基嘧啶-2,4,6-三酮的合成。巴比妥酸或硫代巴比妥酸与醛之间的反应。Verjuice还用于通过巴比妥酸或其硫代类似物，醛和丙二腈的三组分反应有效合成吡喃并[2,3- d ]嘧啶酮衍生物。同样，嘧啶基[4,5- d]嘧啶酮衍生物可简单地通过巴比妥酸，醛与脲或硫脲在果汁中的反应来制备。这种绿色方法学具有显着的优势，包括操作简单，可接受的反应时间，易于后处理，高收率，避免在反应和后处理过程中使用任何昂贵的起始原料，挥发性和有害有机溶剂以及使用天然，低成本，可重复使用且可生物降解的催化剂。
DABCO-based ionic liquids: green and recyclable catalysts for the synthesis of barbituric and thiobarbituric acid derivatives in aqueous media

作者：Narges Seyyedi、Farhad Shirini、Mohaddeseh Safarpoor Nikoo Langarudi

DOI：10.1039/c6ra05878g

日期：——

the reaction of barbituric or thiobarbituric acid, malononitrile and aldehydes in the presence of this reagent and 1,4-disulfo-1,4-diazabicyclo[2.2.2]octane-1,4-diium chloride ([DABCO](SO3H)2(Cl)2) has been investigated. The structure of the products was characterized using IR, 1H NMR and 13C NMR spectroscopy. The present methodologies suggests several advantages such as ease of the preparation and

一种新的，直接的方法，可通过使用1,4-二磺基-1,4-二氮杂双环[2.2.2]辛烷-1通过巴比妥酸及其硫代类似物与醛的反应来合成5-芳基巴比妥酸和硫代巴比妥酸，已经报道了作为有效催化剂的4-二硫酸氢二钠（[DABCO]（SO 3 H）2（HSO 4）2）。在该项目中，还通过在该试剂和1,4-二磺基-1,4-二氮杂双环[2.2]存在下，通过巴比妥酸或硫代巴比妥酸，丙二腈和醛的反应制备吡喃并[2,3- d ]-嘧啶二酮。 .2]辛烷-1,4-氯化铵（[DABCO]（SO 3 H）2（Cl）2）已被调查。使用IR，1 H NMR和13 C NMR光谱对产物的结构进行表征。本方法论提出了若干优点，例如易于制备和处理催化剂，高收率，简单和绿色的方法，低成本，短的反应时间，易于后处理和在水中作为绿色溶剂进行反应的预形成。
Comparison of the efficiency of two imidazole-based dicationic ionic liquids as the catalysts in the synthesis of pyran derivatives and Knoevenagel condensations

作者：Zahra Sharifi、Nader Daneshvar、Mohaddeseh Safarpoor Nikoo Langarudi、Farhad Shirini

DOI：10.1007/s11164-019-03874-5

日期：2019.10

([C4(MIm)2]·2HSO4) were prepared via adequate, solvent-free methods and characterized using FT-IR, 1H NMR, 13C NMR, and potentiometric titration techniques. These reagents were investigated in the synthesis of 5-arylidene (thio)barbituric acids, 2-arylidene malononitriles, 4H-pyrans, and pyrano[2,3-d] pyrimidineones, and their catalytic activities were compared in the promotion of these reactions. Based

在目前的工作中，使用3,3'-（1-丁烷1,4-丁二）双（1-甲基-1 H-咪唑-3-鎓）二氯化物（[C 4（MIm）2 ]·2Cl）和3，通过适当的，无溶剂的方法制备了3 ' -（丁烷-1,4-二基）双（1-甲基-1 H-咪唑-3-鎓）硫酸氢盐[[C 4（MIm）2 ]·2HSO 4） FT-IR，1 H NMR，13 C NMR和电位滴定技术进行表征。在合成5-芳基（硫代）巴比妥酸，2-芳基丙二腈，4 H-吡喃和吡喃并[2,3- d]时对这些试剂进行了研究。比较嘧啶酮及其催化活性，以促进这些反应。根据获得的结果，我们发现[C 4（MIm）2 ]·2Cl在需要碱性或弱酸性介质的情况下显示出更高的催化效率。相反，在需要酸性催化剂以提高反应速率的反应中，[C 4（MIm）2 ]·2HSO 4是强大的催化剂。使用这些试剂，可以在较短的反应时间内，在温和，环保的条件下以优异的收率形成产物，而无需使用柱色谱进行后处理。
A Green Approach to the Synthesis of Fused Uracils: Pyrano[2,3-d]pyrimidines. ‘On-Water’ One-Pot Synthesis by Domino Knoevenagel/Diels-Alder Reactions

作者：Aleksandra Pałasz

DOI：10.1055/s-0030-1258292

日期：2010.12

exclusively. The presented green methods avoid the use of catalysts, the heating of reaction mixtures for long times at high temperatures, and the use of organic solvents, and make the synthesis of a variety of pyrano[2,3-d]pyrimidines chemically efficient. The results reveal water as the medium of choice for the examined cycloadditions. Diels-Alder reactions - drugs - green chemistry - pyrano[2,3-d]pyrimidines

2-硫代巴比妥酸和N，N-二甲基巴比妥酸与芳族和杂芳族醛的“水上” Knoevenagel缩合反应在没有催化剂的情况下在室温下进行。水性悬浮液中的冷凝迅速发生，从而获得了极好的收率。在室温和吡喃[2,3- d]下研究了巴比妥酸的5-芳基衍生物与乙基乙烯基醚的无溶剂杂Diels-Alder反应具有潜在药理活性的嘧啶类药物的收率很高。在水性悬浮液中进行三组分一锅法合成尿嘧啶环化反应。巴比妥酸，醛和乙基乙烯基醚的反应是在环境温度下进行的，而与巴比妥酸，醛和苯乙烯或N-乙烯基-2-恶唑烷酮的一锅法合成需要将水悬浮液加热至60°C 。与在均质有机介质（二氯甲烷，甲苯）中进行的反应相反，“水上”环加成反应的特点是非对映选择性高。他们允许顺式优先或排他获得的加合物。提出的绿色方法避免了使用催化剂，在高温下长时间加热反应混合物以及使用有机溶剂，从而使化学合成多种吡喃并[2,3- d ]嘧啶有效。结果表明水是所考察的环加成反应的选择介质。

5-benzylidene-2-thio-barbituric acid | 27470-61-7

分子结构分类

计算性质

安全信息

SDS

反应信息

文献信息

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