442003
反式-2-丁烯醛二乙基缩醛
technical, 90%
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线性分子式:
CH3CH=CHCH(OC2H5)2
化学文摘社编号:
分子量:
144.21
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352100
MDL number:
Assay:
90%
grade
technical
assay
90%
refractive index
n20/D 1.412 (lit.)
bp
146-150 °C (lit.)
density
0.831 g/mL at 25 °C (lit.)
SMILES string
[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
General description
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.
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
存储类别
3 - Flammable liquids
wgk
WGK 3
flash_point_f
93.2 °F - closed cup
flash_point_c
34 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter