149777-84-4

• 常用中文名：4-甲基-苯乙烯基硼酸频哪酯
• 常用英文名：4-METHYL-BETA-STYRYLBORONIC ACID PINACOL ESTER
• CAS号：149777-84-4
• 分子式：C₁₅H₂₁BO₂
• 分子量：244.13700
• 发布时间：2018-12-05 19:48:30
• 更新时间：2024-02-04 12:17:52

名称

• 中文名: 4-甲基-β-苯乙烯基硼酸频哪醇酯
• 英文名: 4,4,5,5-tetramethyl-2-[2-(4-methylphenyl)ethenyl]-1,3,2-dioxaborolane
• 中文别名: 4-甲基-beta-苯乙烯基硼酸频那醇酯; 4-甲基-苯乙烯基硼酸频哪酯
• 英文别名: MFCD03788749

物化性质

• 密度: 0.98g/cm3
• 沸点: 292.3ºC at 760mmHg
• 熔点: 56-58ºC
• 分子式: C₁₅H₂₁BO₂
• 分子量: 244.13700
• 闪点: 130.6ºC
• 精确质量: 244.16300
• PSA: 18.46000
• LogP: 3.63960
• 外观性状: 淡黄色固体
• 蒸汽压: 0.003mmHg at 25°C
• 折射率: 1.505
• 储存条件:

  保存方法：密闭，阴凉，干燥处

• 稳定性:

  避氧化物

• 更多:

  1. 性状：白色固体

  2. 密度（g/mL, 20 ℃ ）：未确定

  3. 相对蒸汽密度（g/mL,空气=1）：未确定

  4. 熔点（ºC）：56-58

  5. 沸点（ºC,常压）：未确定

  6. 沸点（ºC 7mmHg）：未确定

  7. 折射率：未确定

  8. 闪点（ºC）：未确定

  9. 比旋光度（º）：未确定

  10. 自燃点或引燃温度（ºC）：不适用的

  11. 蒸气压（kPa,25ºC）：未确定

  12. 饱和蒸气压（kPa,60ºC）：未确定

  13. 燃烧热（KJ/mol）：未确定

  14. 临界温度（ºC）：未确定

  15. 临界压力（KPa）：未确定

  16. 油水（辛醇/水）分配系数的对数值：未确定

  17. 爆炸上限（%,V/V）：未确定

  18. 爆炸下限（%,V/V）：未确定

  19. 溶解性：不能溶于水

MSDS

Material Safety Data Sheet Section1. Identification of the substance Product Name: 4-Methyl-beta-styrylboronic acid pinacol ester Synonyms: Section2. Hazards identification Harmful by inhalation, in contact with skin, and if swallowed. Section3. Composition/information on ingredients. Ingredient name:4-Methyl-beta-styrylboronic acid pinacol ester CAS number:149777-84-4 Section4. 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. Section5. 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. Section6. 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. Section7. 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, refrigerated. Storage: Section8. 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. Section9. Physical and chemical properties Appearance:Not specified Boiling point:No data No data Melting point: Flash point:No data Density:No data Molecular formula:C15H21BO2 Molecular weight:244.1 Section10. Stability and reactivity Conditions to avoid: Heat, flames and sparks. Materials to avoid: Oxidizing agents. Possible hazardous combustion products: Carbon monoxide. Section11. Toxicological information No data. Section12. Ecological information No data. Section13. 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. Section14. Transportation information Non-harzardous for air and ground transportation. Section15. 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. SECTION 16 - ADDITIONAL INFORMATION N/A

毒性和生态

生态学数据: 1、其它有害作用：通常对水是稍微危害的，若无政府许可，勿将材料排入周围环境。

安全

• 安全声明 (欧洲): S22-S24/25
• 海关编码: 2934999090

合成路线

624-31-7 75927-49-0 ~95% 149777-84-4

文献：Angewandte Chemie - International Edition, , vol. 45, # 15 p. 2404 - 2409

5720-05-8 75927-49-0 ~71% 149777-84-4

文献：Journal of Organic Chemistry, , vol. 72, # 21 p. 7957 - 7962

76-09-5 72316-17-7 ~97% 149777-84-4

文献：Tetrahedron Letters, , vol. 43, # 34 p. 5965 - 5968

25015-63-8 766-97-2 ~99% 149777-84-4

文献：Chemistry - An Asian Journal, , vol. 8, # 1 p. 50 - 54

25015-63-8 766-97-2 ~% 1192488-87-1 149777-84-4

文献：Chemistry - A European Journal, , vol. 18, # 5 p. 1512 - 1521

上下游产品

上游产品  7
624-31-7 75927-49-0 5720-05-8 76-09-5
72316-17-7 25015-63-8 766-97-2
下游产品  0

海关

海关编码	2934999090
中文概述	2934999090. 其他杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0%
申报要素	品名, 成分含量, 用途
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%