Regio- and stereo-selective lithiation of diallyl amines: an easy entry to trianionic intermediates

Abstract
The successive treatment of diallyl amine (1a) with an alkyl-lithium reragent leads to several trianionic derivatives (4a) in a regio-and stereo-selective manner; in the case of N-allyl-N-(methylallyl)amine (1b), the lithiation step is only observed in the methylallyl moiety of the amine; these trianions are characterized by reaction with deuterium oxide to yeild the corresponding deuteriated products (5).