3165. Diglyme

Nomenclature

CAS number: 111-96-6
1,1′-Oxybis[2-methoxyethane]; bis(2-methoxyethyl) ether; diethylene glycol dimethyl ether.
C6H14O3; mol wt 134.17.
C 53.71%, H 10.52%, O 35.77%.

Description and references

Prepn: Cretcher, Pittenger, J. Am. Chem. Soc. 47, 163 (1925); Gallaugher, Hibbert, ibid. 58, 813 (1936).

Chemical structure

Properties

Liquid, bp760 162°; bp200 116°; bp35 75°; bp3 20°. d2020 0.9451. mp -68°. Flash pt (open cup) 158°F (70°C). nD20 1.4097. Miscible with water, alcohol, ether, hydrocarbon solvents.

Use

Solvent; reaction medium for Grignard and similar syntheses.