Dimethyl glycol

Dimethoxyethane

| Section8 = }}

Dimethoxyethane, also known as glyme, monoglyme, dimethyl glycol, ethylene glycol dimethyl ether, dimethyl cellosolve, and DME, is a clear, colorless, aprotic, and liquid ether that is used as a solvent. Dimethoxyethane is highly soluble in water.

Dimethoxyethane is often used as a higher boiling alternative to diethyl ether and THF. Dimethoxyethane forms chelate complexes with cations and acts as a bidentate ligand. It is therefore often used in organometallic chemistry like Grignard reactions, hydride reductions, and palladium catalyzed reactions like Suzuki reactions and Stille coupling. Dimethoxyethane is also a good solvent for oligo- and polysaccharides.

The lowest energy form of dimethoxyethane in the gas phase is the gauche, rather than the anti conformer

Production

Monoglyme be manufactured by a number of methods:

2 CH3OCH2CH2OH + 2 Na → 2 CH3OCH2CH2ONa + H2
CH3OCH2CH2ONa + CH3Cl → CH3OCH2CH2OCH3 + NaCl

CH3OCH3 + CH2CH2O → CH3OCH2CH2OCH3

Uses

Together with a high-permittivity chemical (eg. propylene carbonate), dimethoxyethane is used as the low-viscosity component of the solvent for electrolytes of lithium batteries.

References

External links

Search another word or see Dimethyl glycolon Dictionary | Thesaurus |Spanish
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature