Two new types of 8-nitrogen-functionalized vinylic organolithium compounds have been prepared from secondary aliphatic allylamines through the temporary silylation of the amino group. The monoanionic intermediates 4, stable at-80" C, are generated by a bromine- lithium exchange reaction and the dianionic derivatives 2, stable at room temperature, by a tin-lithium transmetalation reaction. Both types of organolithium compounds react with ...
