PMDTA
(重定向自PMDT)

PMDTA, formally N,N,N′,N′′,N′′-pentamethyldiethylenetriamine, is an organic compound with the formula [Me2NCH2CH2]2NMe (Me is CH3). PMDTA is a basic, bulky, and flexible, tridentate ligand that is a used in organolithium chemistry. It is a colorless liquid, although impure samples appear yellowish.