47675
二乙醇缩甲醛
absolute, over molecular sieve (H2O ≤0.01%), ≥99.0% (GC)
别名:
二乙氧基甲烷, 甲醛缩二乙醇
登录 查看组织和合同定价。
选择尺寸
关于此项目
线性分子式:
CH2(OC2H5)2
化学文摘社编号:
分子量:
104.15
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
207-330-6
Beilstein/REAXYS Number:
1697253
MDL number:
Assay:
≥99.0% (GC)
Technique(s):
GC/GC: suitable
Bp:
87-88 °C (lit.)
Vapor pressure:
60 mmHg ( 25 °C)
产品名称
二乙醇缩甲醛, absolute, over molecular sieve (H2O ≤0.01%), ≥99.0% (GC)
InChI key
KLKFAASOGCDTDT-UHFFFAOYSA-N
InChI
1S/C5H12O2/c1-3-6-5-7-4-2/h3-5H2,1-2H3
SMILES string
CCOCOCC
vapor density
3.6 (vs air)
vapor pressure
60 mmHg ( 25 °C)
grade
absolute
assay
≥99.0% (GC)
form
liquid
autoignition temp.
346 °F
quality
over molecular sieve (H2O ≤0.01%)
technique(s)
GC/GC: suitable
refractive index
n20/D 1.373 (lit.)
n20/D 1.374
bp
87-88 °C (lit.)
density
0.831 g/mL at 25 °C (lit.)
functional group
ether
Quality Level
正在寻找类似产品? 访问 产品对比指南
Application
Formaldehyde diethyl acetal may be used as a solvent in the esterification of carboxylic acids and in the O-alkylation of a variety of phenols.
General description
Formaldehyde diethyl acetal (FDEA, diethoxymethane, DEM) is a diethyl acetal. It has been synthesized from ethanol and aqueous formaldehyde. It is a low boiling solvent useful for sodium hydride reactions, organolithium chemistry, copper-catalyzed conjugate additions and phase-transfer reactions. It is a potential alternate for tetrahydrofuran, dichloromethane, glyme and methylal. DEM is an ethoxymethylating agent, a formaldehyde equivalent and a carbonylation substrate. Its condensation with 2-propylresorcinol to form resorcin[n]arenes (n=4–7) has been investigated. The IR and Raman spectra and conformations of DEM have been studied. NMR spectroscopy has been used to study the aggregation behavior of organolithium compounds in diethoxymethane. Unimolecular metastable decomposition of DEM upon electron impact has been studied. Solubility of non-polar gases in DEM has been evaluated.
signalword
Danger
hcodes
Hazard Classifications
Flam. Liq. 2
存储类别
3 - Flammable liquids
wgk
WGK 1
flash_point_f
23.0 °F - closed cup
flash_point_c
-5 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
法规信息
危险化学品
此项目有
NMR spectroscopy of organolithium compounds, Part XVI: The aggregation behavior of butyllithium, phenyllithium, and lithium diisopropylamide in dimethoxy-and diethoxymethane.
Bergander K, et al.
Tetrahedron, 50(20), 5861-5868 (1994)
Sc(OTf)3-catalyzed cyclocondensation of 2-propylresorcinol with diethoxymethane. Formation and fragmentation of resorcin [n] arenes.
Morikawa O, et al.
Tetrahedron Letters, 45(29), 5731-5734 (2004)
Solubility of non polar gases in formaldehyde diethyl acetal between-10 and 30?C, and 1 Atm partial pressure of gas.
Lizano LP, et al.
Journal of Solution Chemistry, 19(7), 721-728 (1990)
Metastable decompositions of gem-dialkoxyalkanes upon electron impact. III. Diethoxymethane (CH2 (OCH2CH3)2).
Tajima S, et al.
Rapid Communications in Mass Spectrometry, 14(14), 1195-1199 (2000)
Study on the synthesis of diethoxy methane using toluene-p-sulfonic acid as catalyst.
Gu Z, et al.
Chinese Journal of Applied Chemistry / Ying Yong Hua Xue, 22(12), 1368-1368 (2005)
我们的科学家团队拥有各种研究领域经验，包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.
联系客户支持