N,N'-Dimethylethylenediamine

N,N'-Dimethylethylenediamine (DMEDA) is the organic compound with the formula (CH$3$NH)$2$C$2$H$4$. It is a colorless liquid with a fishy odor. It features two secondary amine functional groups. Regarding its name, N and N' indicate that the methyl groups are attached to different nitrogen atoms.

Reactions
DMEDA is used as a chelating diamine for the preparation of metal complexes, some of which function as homogeneous catalysts.

The compound is used as a precursor to imidazolidines by condensation with ketones or with aldehydes:
 * O\dCRR' + C2H4[NH(CH3)]2 → C2H4[NH(CH3)]2CRR' +  H2O



DMEDA complexes of copper(I) halides are used to catalyze C-N coupling reactions.