Diethyl ether (source code)

= Diethyl ether
{title2=$\mathrm{C}_4\mathrm{H}_{10}\mathrm O$}
{wiki}

<Diethyl ether> is the <ether> $\mathrm{CH_3CH_2OCH_2CH_3}$. Its oxygen has lone pairs that can coordinate metal-containing reagents, while its carbon groups provide a relatively nonpolar environment.

This combination explains its role as a solvent in organometallic chemistry. It is a distinct compound from an ester, which contains a carbonyl group adjacent to oxygen, despite some similarity in their names.