442003

trans-2-Butenal diethyl acetal

technical, 90%

• Fórmula linear: CH₃CH=CHCH(OC₂H₅)₂
• Número CAS: 63511-92-2
• Peso molecular: 144.21
• Número MDL: MFCD00239338
• Código UNSPSC: 12352100
• ID de substância PubChem: 24867717
• NACRES: NA.22

Propriedades

• grau: technical
• Ensaio: 90%
• índice de refração: n20/D 1.412 (lit.)
• p.e.: 146-150 °C (lit.)
• densidade: 0.831 g/mL at 25 °C (lit.)
• cadeia de caracteres SMILES: [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+
• chave InChI: ZUMISMXLQDKQDS-QPJJXVBHSA-N

Descrição

Descrição geral

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]

Aplicação

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]

Informações de segurança

• Pictogramas: GHS02,GHS07
• Palavra indicadora: Warning
• Frases de perigo: H226,H315,H319,H335
• Declarações de precaução: P210 - P233 - P240 - P241 - P303 + P361 + P353 - P305 + P351 + P338
• Classificações de perigo: Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3
• Órgãos-alvo: Respiratory system
• Código de classe de armazenamento: 3 - Flammable liquids
• Classe de risco de água (WGK): WGK 3
• Ponto de fulgor (°F): 93.2 °F - closed cup
• Ponto de fulgor (°C): 34 °C - closed cup
• Equipamento de proteção individual: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter