8.14874

2-Methyl-2-butene

(mixture of isomers) for synthesis

• 別名: 2-Methyl-2-butene, Isoamylene, Trimethylethylene
• 実験式（ヒル表記法）: C₅H₁₀
• CAS番号: 26760-64-5
• 分子量: 70.13
• UNSPSCコード: 12352002
• EC Index Number: 247-975-0
• NACRES: NA.22

特性

• 蒸気圧: 513 hPa ( 20 °C)
• 品質水準: 200
• アッセイ: 83.0-88.0% (GC)
• 形状: liquid
• 自己発火温度: 290 °C
• 有効性: 1000-1700 mg/kg LD₅₀, oral (Rat); >2000 mg/kg LD₅₀, skin (Rat)
• expl. lim.: 1-9 % (v/v)
• kinematic viscosity: 0.29 cSt(20 °C)
• mp: -134 °C
• 転移温度: flash point -45 °C
• 密度: 0.66 g/cm³ at 20 °C
• 保管温度: 2-8°C
• InChI: 1S/C5H10/c1-4-5(2)3/h2,4H2,1,3H3
• InChI Key: MHNNAWXXUZQSNM-UHFFFAOYSA-N

詳細

アプリケーション

• Palladium-Catalyzed Pentenylation of Indoles: A study demonstrated the use of 2-Methyl-2-butene in palladium-catalyzed intermolecular dehydrogenative pentenylation of indoles, offering a novel pathway in synthetic chemistry for creating complex molecules (Zhang et al., 2024).
• Asynchronous Concerted Mechanism: Research explored an asynchronous concerted mechanism in Lewis acid-mediated carbonyl-olefin [2+2] cycloaddition involving 2-Methyl-2-butene, providing insights into reaction dynamics and stereochemical outcomes in organic synthesis (Li et al., 2023).

アナリシスノート

Assay (GC, area%): 83.0 - 88.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.658 - 0.663
2-Methyl-1-buten (GC, area%): 12.0 - 17.0 % (a/a)
Identity (IR): passes test

安全性情報

• ピクトグラム: GHS02,GHS07,GHS08,GHS09
• シグナルワード: Danger
• 危険有害性情報: H224 - H302 - H304 - H315 - H336 - H341 - H351 - H411
• 注意書き: P210 - P233 - P273 - P301 + P310 - P331 - P403 + P233
• 危険有害性の分類: Acute Tox. 4 Oral - Aquatic Chronic 2 - Asp. Tox. 1 - Carc. 2 - Flam. Liq. 1 - Muta. 2 - Skin Irrit. 2 - STOT SE 3
• ターゲットの組織: Central nervous system
• 保管分類コード: 3 - Flammable liquids
• WGK: WGK 2
• 引火点(°F): -49.0 °F
• 引火点(℃): -45 °C