442003

反式-2-丁烯醛二乙基缩醛

technical, 90%

• 线性分子式: CH₃CH=CHCH(OC₂H₅)₂
• CAS号: 63511-92-2
• 分子量: 144.21
• MDL编号: MFCD00239338
• UNSPSC代码: 12352100
• PubChem化学物质编号: 24867717
• NACRES: NA.22

属性

• 等级: technical
• 方案: 90%
• 折射率: n20/D 1.412 (lit.)
• 沸点: 146-150 °C (lit.)
• 密度: 0.831 g/mL at 25 °C (lit.)
• SMILES字符串: [H]\C(C)=C(\[H])C(OCC)OCC
• InChI: 1S/C8H16O2/c1-4-7-8(9-5-2)10-6-3/h4,7-8H,5-6H2,1-3H3/b7-4+
• InChI key: ZUMISMXLQDKQDS-QPJJXVBHSA-N

说明

一般描述

trans-2-Butenal diethyl acetal is an acetal. Acetals are usually derived from the aldehydes. They have two single-bonded oxygen atoms attached to the same carbon atom. They are stable under basic conditions and they can be hydrolyzed back to the carbonyl compound. Acetals serves as a carbonyl protecting group and also are present as functional groups in glycosidic bonds. trans-2-Butenal diethyl acetal has been synthesized from trans-2-butenal with ethanol in the presence of methanesulfonic acid or methylsulfonate as catalysts.[1]

应用

trans-2-Butenal diethyl acetal may be used in the preparation of 2S,3S-epoxybutan-1-ol, an intermediate in the synthesis of erythromycin antibiotic.[2]

安全信息

• 象形图: GHS02,GHS07
• 警示用语：: Warning
• 危险声明: H226,H315,H319,H335
• 预防措施声明: P210 - P233 - P240 - P241 - P303 + P361 + P353 - P305 + P351 + P338
• 危险分类: Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3
• 靶器官: Respiratory system
• 储存分类代码: 3 - Flammable liquids
• WGK: WGK 3
• 闪点(°F): 93.2 °F - closed cup
• 闪点(°C): 34 °C - closed cup
• 个人防护装备: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter