442003

trans-2-Butenal diethyl acetal

technical, 90%

• Formule linéaire : CH₃CH=CHCH(OC₂H₅)₂
• Numéro CAS: 63511-92-2
• Poids moléculaire : 144.21
• Numéro MDL: MFCD00239338
• Code UNSPSC : 12352100
• ID de substance PubChem : 24867717
• Nomenclature NACRES : NA.22

Propriétés

• Qualité: technical
• Pureté: 90%
• Indice de réfraction: n20/D 1.412 (lit.)
• Point d'ébullition: 146-150 °C (lit.)
• Densité: 0.831 g/mL at 25 °C (lit.)
• Chaîne 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+
• Clé InChI: ZUMISMXLQDKQDS-QPJJXVBHSA-N

Description

Description générale

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.

Application

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.

Informations sur la sécurité

• Pictogrammes: GHS02,GHS07
• Mention d'avertissement: Warning
• Mentions de danger: H226,H315,H319,H335
• Conseils de prudence: P210 - P233 - P240 - P241 - P303 + P361 + P353 - P305 + P351 + P338
• Classification des risques: Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3
• Organes cibles: Respiratory system
• Code de la classe de stockage: 3 - Flammable liquids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): 93.2 °F - closed cup
• Point d'éclair (°C): 34 °C - closed cup
• Équipement de protection individuelle: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter