442003

trans-2-Butenal diethyl acetal

technical, 90%

• Formula condensata: CH₃CH=CHCH(OC₂H₅)₂
• Numero CAS: 63511-92-2
• Peso molecolare: 144.21
• Numero MDL: MFCD00239338
• Codice UNSPSC: 12352100
• ID PubChem: 24867717
• NACRES: NA.22

Proprietà

• Grado: technical
• Saggio: 90%
• Indice di rifrazione: n20/D 1.412 (lit.)
• P. eboll.: 146-150 °C (lit.)
• Densità: 0.831 g/mL at 25 °C (lit.)
• Stringa SMILE: [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+; ZUMISMXLQDKQDS-QPJJXVBHSA-N

Descrizione

Descrizione generale

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.

Applicazioni

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.

Informazioni sulla sicurezza

• Pittogrammi: GHS02,GHS07
• Avvertenze: Warning
• Indicazioni di pericolo: H226,H315,H319,H335
• Consigli di prudenza: P210 - P233 - P240 - P241 - P303 + P361 + P353 - P305 + P351 + P338
• Classi di pericolo: Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3
• Organi bersaglio: Respiratory system
• Codice della classe di stoccaggio: 3 - Flammable liquids
• Classe di pericolosità dell'acqua (WGK): WGK 3
• Punto d’infiammabilità (°F): 93.2 °F - closed cup
• Punto d’infiammabilità (°C): 34 °C - closed cup
• Dispositivi di protezione individuale: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter