所有图片(2)
About This Item
线性分子式:
CH2(OC2H5)2
CAS号:
分子量:
104.15
Beilstein:
1697253
EC 号:
MDL编号:
UNSPSC代码:
12352112
PubChem化学物质编号:
NACRES:
NA.21
方案:
99.7%
沸点:
87-88 °C (lit.)
蒸汽压:
60 mmHg ( 25 °C)
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蒸汽密度
3.6 (vs air)
质量水平
蒸汽压
60 mmHg ( 25 °C)
方案
99.7%
表单
liquid
自燃温度
346 °F
包含
50-150 ppm BHT as stabilizer
expl. lim.
8 %
折射率
n20/D 1.373 (lit.)
沸点
87-88 °C (lit.)
mp
-66.5 °C
密度
0.831 g/mL at 25 °C (lit.)
SMILES字符串
CCOCOCC
InChI
1S/C5H12O2/c1-3-6-5-7-4-2/h3-5H2,1-2H3
InChI key
KLKFAASOGCDTDT-UHFFFAOYSA-N
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一般描述
Diethoxymethane (DEM) is a dialkoxymethane that can be synthesized by reacting ethanol and aqueous formaldehyde using macroporous cation-exchange resin Indion-130 as a catalyst. Infrared spectra of the conformers of DEM in various states have been obtained by matrix isolation infrared spectroscopy. The characteristic properties of DEM include low boiling point, low affinity for water, base stability and does not need drying for any reactions. Its infrared and Raman spectra have been reported.
应用
Diethoxymethane may be used as a substitute solvent to dichloromethane and toluene in the O-alkylation of different phenols in the presence of phase transfer catalysts (PTCs).
警示用语：
Danger
危险声明
危险分类
Flam. Liq. 2
储存分类代码
3 - Flammable liquids
WGK
WGK 1
闪点(°F)
23.0 °F - closed cup
闪点(°C)
-5 °C - closed cup
法规信息
危险化学品
Gaël Combe et al.
Physical review letters, 115(23), 238301-238301 (2015-12-20)
In this Letter, we address the relationship between the statistical fluctuations of grain displacements for a full quasistatic plane shear experiment, and the corresponding anomalous diffusion exponent α. We experimentally validate a particular case of the Tsallis-Bukman scaling law, α=2/(3-q)
Zhanna A Afonina et al.
Nucleic acids research, 43(1), 618-628 (2014-12-19)
Using sedimentation and cryo electron tomography techniques, the conformations of eukaryotic polyribosomes formed in a long-term cell-free translation system were analyzed over all the active system lifetime (20-30 translation rounds during 6-8 h in wheat germ extract at 25°C). Three
Reaction of ethanol and formaldehyde: use of versatile cation-exchange resins as catalyst in batch reactors and reactive distillation columns.
Chopade SP and Sharma MM.
Reactive functional Polymers, 32(1), 53-65 (1997)
Conformations of diethoxymethane: matrix isolation infrared and ab Initio studies.
Venkatesan V, et al.
The Journal of Physical Chemistry A, 107(39), 7727-7732 (2003)
Use of Diethoxymethane as a Solvent for Phase Transfer-Catalyzed O-Alkylation of Phenols.
Coleman MT and LeBlanc G.
Organic Process Research & Development, 14(3), 732-736 (2010)
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