Pivalic acid 特戊酸

CAS 75-98-9 MFCD00004194

化学结构图

75-98-9
SMILES: CC(C)(C)C(=O)O

化学属性

Mol. FormulaC5H10O2
Mol. Weight102.13
Density0.889
Vapor Density3.6 (vs air)
Boiling Point163-164°C at 760 mmHg
Vapor Pressure9.75 mmHg ( 60 °C)
Melting Point64°C
Flash Point64°C(lit.)
SolubilitySoluble in alcohol, ether. Slightly soluble in water
TSCAYes
Appearance 无色结晶。 溶于水,易溶于乙醇、乙醚。
Refractive index1.393

别名和识别编码

Chemical NamePivalic acid
Synonym Pivalic acid {LY} Pivalic acid pivalic acid pivalic acid, sodium salt {} {LY} Pivalic acid {} {} {LY} Pivalic acid {} {} {} {LY} Pivalic acid {} {} {} {} {LY} Pivalic acid {} {} {} {} {} {LY} Pivalic acid {} {} {} {} {} {} {LY} Pivalic acid {} {} {} {} {} {} {} {LY} Pivalic acid {} {} {} {} {} {} {} {} {LY} Pivalic acid {} {} {} {} {} {} {} {} {} {LY} Pivalic acid {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Pivalic acid {} {} {} {} {} {} {} {} {} {} {} {LY} Pivalic acid {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Pivalic acid {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Pivalic acid {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Pivalic acid {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Pivalic acid {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY
MDL NumberMFCD00004194
CAS Number75-98-9
EC Number200-922-5
Beilstein Registry Number969480
PubChem Substance ID6417
Merck Number7511
Reaxys-RN969480
Chemical Name Translation特戊酸
Wiswesser Line NotationQVX1&1&1
LabNetwork Molecule IDLN00225984
InChIInChI=1S/C5H10O2/c1-5(2,3)4(6)7/h1-3H3,(H,6,7)
Canonical SMILESCC(C)(C)C(O)=O
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分类

  • {SNA} Building Blocks, C1 to C5, Carbonyl Compounds, Carboxylic Acids, Chemical Synthesis, Organic Building Blocks
  • {SNA} Building Blocks, C-H Activation, C1 to C5, Carbonyl Compounds, Carboxylic Acids, Catalysis and Inorganic Chemistry, Chemical Synthesis, Ligands and Auxiliaries, Organic Building Blocks
  • {uni_hamburg} no charge; carboxylic acid; 1fragment
  • {SNA} Building Blocks, C-H Activation, C1 to C5, Carbonyl Compounds, Carboxylic Acids, Catalysis and Inorganic Chemistry, Chemical Synthesis, Ligands and Auxilaries, Organic Building Blocks

产品应用

  • 三甲基乙酸可作聚氯乙烯等和油漆稳定剂,自由基促进剂。

相关文献及参考

  • In the presence of an Ag(II) species (from silver nitrate and ammonium persulfate in TFA), tert-butyl radicals are generated. With quinoline, the 2-tert-butyl substituted derivative is formed in high yield: Tetrahedron, 46, 2525 (1990), whereas for most other carboxylic acids, both 2- and 4-substitution usually occur.
  • Short: III/29a
  • Merck: 14,7511
  • Short: III/30A
  • Merck: 14,7511 Beilstein:2,319

安全信息

Signal word Danger
GHS Symbol
WGK Germany1
Safety Statements
  • S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 眼睛接触后,立即用大量水冲洗并征求医生意见;
  • S36/37/39 Wear suitable protective clothing, gloves and eye/face protection 穿戴适当的防护服、手套和眼睛/面保护;
  • S45 In case of accident or if you feel unwell seek medical advice immediately (show the label where possible) 发生事故时或感觉不适时,立即求医(可能时出示标签);
Risk Statements
  • R21/22 Harmful in contact with skin and if swallowed 皮肤接触和不慎吞咽有害
  • R34 Causes burns 会导致灼伤
Precautionary statements
  • P234 Keep only in original container. 只保留在原来的容器中。
  • P260 Do not breathe dust/fume/gas/mist/vapours/spray. 不要吸入粉尘/烟/气体/烟雾/蒸汽/喷雾。
  • P261 Avoid breathing dust/fume/gas/mist/vapours/spray. 避免吸入粉尘/烟/气体/烟雾/蒸汽/喷雾。
  • P264 Wash hands thoroughly after handling. 处理后要彻底洗净双手。
  • P264+P265
  • P270 Do not eat, drink or smoke when using this product. 使用本产品时不要吃东西,喝水或吸烟。
  • P271 Use only outdoors or in a well-ventilated area.? 只能在室外或通风良好的地方使用。
  • P273 Avoid release to the environment. 避免释放到环境中。
  • P280 Wear protective gloves/protective clothing/eye protection/face protection. 戴防护手套/防护服/眼睛的保护物/面部保护物。
  • P301+P312
  • P301+P317
  • P301+P330+P331
  • P301+P330+P331+P310
  • P302+P352
  • P302+P361+P354
  • P303+P361+P353
  • P303+P361+P353+P310+P363
  • P304+P312
  • P304+P340
  • P304+P340+P310
  • P305+P351+P338
  • P305+P351+P338+P310
  • P305+P354+P338
  • P308+P311
  • P308+P316
  • P309+P311
  • P310 Immediately call a POISON CENTER or doctor/physician. 立即呼救解毒中心或医生/医师。
  • P312 Call a POISON CENTER or doctor/physician if you feel unwell. 如果你感觉不适,呼叫解毒中心或医生/医师。
  • P316
  • P317
  • P319
  • P321 Specific treatment (see … on this label). 具体治疗(见本标签上的)。
  • P322 Specific measures (see …on this label). 具体治疗(见本标签上的)。
  • P330 Rinse mouth. 漱口
  • P332+P313
  • P332+P317
  • P337+P313
  • P337+P317
  • P362 Take off contaminated clothing and wash before reuse. 脱掉污染的衣服,清洗后方可重新使用
  • P362+P364
  • P363 Wash contaminated clothing before reuse. 被污染的衣服洗净后方可重新使用。
  • P390 Absorb spillage to prevent material damage. 吸收溢出物,防止重大损害。
  • P403+P233
  • P405 Store locked up. 上锁保管。
  • P406 Store in corrosive resistant/… container with a resistant inner liner. 存放在耐腐蚀/具有耐性的内衬容器。
  • P501 Dispose of contents/container to..… 处理内容物/容器.....
Hazard statements
  • H227 Combustible liquid 可燃液体
  • H290 May be corrosive to metals 可能腐蚀金属。
  • H302 Harmful if swallowed 吞食有害
  • H302+H312
  • H312 Harmful in contact with skin 皮肤接触有害
  • H314 Causes severe skin burns and eye damage 导致严重的皮肤灼伤和眼睛损伤
  • H315 Causes skin irritation 会刺激皮肤
  • H319 Causes serious eye irritation 严重刺激眼睛
  • H332 Harmful if inhaled 吸入有害
Personal Protective Equipment Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
RTECSTO7700000
Packing GroupII
UN Number 3261 UN 3261 8/PG 2
Hazard Codes 8 C
Hazard Class8
Storage condition Store at room temperature {LY} Store at room temperature {} {LY} Store at room temperature {} {} {LY} Store at room temperature {} {} {} {LY} Store at room temperature {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {}
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 188 mg/kg/47W-I
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Lungs, Thorax, or Respiration - tumors
   Skin and Appendages - tumors
REFERENCE :
   CALEDQ Cancer Letters (Shannon, Ireland).  (Elsevier Scientific Pub. Ireland
   Ltd., POB 85, Limerick, Ireland)  V.1-    1975- Volume(issue)/page/year:
   17,61,1982

TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 900 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   37ASAA "Kirk-Othmer Encyclopedia of Chemical Technology," 3rd ed., Grayson,
   M., and D. Eckroth, eds., New York, John Wiley & Sons, Inc., 1978
   Volume(issue)/page/year: 4,863,1978

TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 1900 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   37ASAA "Kirk-Othmer Encyclopedia of Chemical Technology," 3rd ed., Grayson,
   M., and D. Eckroth, eds., New York, John Wiley & Sons, Inc., 1978
   Volume(issue)/page/year: 4,863,1978

其他信息

  • 下游产品:三甲基乙酰氯 --> 异恶草酮 --> 2-叔丁基吡啶-4-羧酸 --> 3-(3-甲氧基苯基)丙酸 --> 2-叔丁基-4-氰基吡啶 --> 过氧化新戊酸叔丁酯 --> 3-氯特戊酸
  • Sigma Aldrich:75-98-9(sigmaa
  • 所属类别二:农药中间体: 除草剂中间体: 其他类除草剂
  • 蒸气压:9.75 mm Hg ( 60 °C)
  • 所属类别一:农药中间体: 杀虫剂中间体: 氨基甲酸酯类杀虫剂
  • 方法二:将硫酸加入高压釜,用一氧化碳置换釜中空气,然后充入一氧化碳使压力达5MPa左右,用计量泵加入异丁烯与三氯甲烷的混合液,在5MPa、室温下搅拌0.5h,泄压后将物料置于冰水中,在5~15℃搅拌15min,分取三氯甲烷层,用无水硫酸钠干燥,蒸馏,收集65~70℃(2.67 kPa)馏分,得纯度为97%的三甲基乙酸,收率74%。 三甲基乙酸还可以以异丁醇为原料制得。在250mL三口瓶中加入浓硫酸108mL(2mol),升温至50℃,在搅拌情况下快速滴入甲酸17mL(0.4mol)和异丁醇27.5mL(0.3mol)的混合物。反应温度控制在50~60℃,滴加时间约为20~30min,并在此温度下继续搅拌1~1.5h。反应完毕后将反应液冷却,再慢慢倒入150g冰水中,静止分层,分出油层,水层用20mL苯萃取2次,萃取液与油层合并,用饱和氯化钠溶液洗涤2次,经无水硫酸钠干燥后进行蒸馏,收集162~164℃的馏分23.5g,收率76.8%。
  • 方法一:其制备方法是用异丁醇和甲酸在硫酸存在下加热反应而得到产品。反应方程式:(CH 3 ) 2 CHCH 2 OH+HCOOH[H 2 SO 4 ]→(CH 3 ) 3 CCOOH 也可用叔丁基氯和氰化钠反应生成三甲基乙腈,再进一步在酸性介质下水解生成产品。反应方程式:(CH 3 ) 3 CCl+NaCN→(CH 3
  • 用途二:三甲基乙酸又名新戊酸、叔戊酸或特戊酸。三甲基乙酸是生产氨基甲酸酯类杀虫剂唑蚜威的中间体,也是生产除草剂异恶草松的中间体。由三甲基乙酸制备的引发剂过氧化叔丁酯是氯乙烯、乙酸乙烯、苯乙烯、丙烯酸酯等聚合的高效引发剂,比其他过氧化物引发剂稳定,能在各种pH值的水溶液和低温中使用。三甲基乙酸的衍生物广泛用于向分子中引入叔丁基官能团,可作香料、液体胶黏剂、润滑剂、增湿剂的成分及初级原料。三甲基乙酸还可作治疗关节炎、肺结核、牛皮癣的药物原料
  • Alfa Aesar:三甲基乙酸,99% Trimethylacetic acid, 99%(75-98-9)
  • 用途四:用于生产烯烃聚合引发剂TBPP的原料,也用于生产聚氯乙烯的稳定剂和香料的原料等。
  • 用途一:用作农药、医药、染料中间体,也用于高档涂料、聚合引发剂、感光材料、香料、润滑油等
  • 三甲基乙酸价格(试剂级):更新日期 产品编号 产品名称 包装 价格 2011/08/23 30185683 三甲基乙酸;新戊酸;2,2-二甲基丙酸 100g 100元 2011/08/23 30185681 三甲基乙酸;新戊酸;2,2-二甲基丙酸 100g 100元 2011/04/16 P0461 特戊酸 Pivalic Acid 25G 150元
  • 上游原料:三氯甲烷 --> 甲酸 --> 一氧化碳 --> 异丁烯 --> 异丁醇 --> 氯代叔丁烷 --> 三甲基乙腈 --> 甲酸98%
  • MOL 文件:75-98-9.mol
  • 方法三:1.异丁醇和甲酸在浓硫酸作用下反应得叔戊酸。2.将硫酸加入高压釜,用一氧化碳置换釜中空气,然后充入一氧化碳使压力达5MPa左右。用计量泵加入异丁烯与三氯甲烷的混合液。在5MPa左右,室温下搅拌半小时,泄压后将物料倾出至冰水中,在5-15℃搅拌15min。分取三氯甲烷层,用无水硫酸钠干燥、蒸馏,收集65-70℃(2.67kPa)馏分,得纯度为97%的三甲基乙酸。收率74%。3.叔丁醇与甲酸(98%)在浓硫酸存在下反应制得。
  • 易溶于醇、醚。水中溶解度:25 g/l (20°C)
  • 用途三:三甲基乙酸即特戊酸,是除草剂异恶草松的中间体,也是医药氟甲松、呋氨苄、双特代肾上腺的原料,也可生产氨苄青霉素等。

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