β, β-Dihalo-and β, β, β-trichloroamines, obtained by Lewis acid-promoted Petasis-type reaction of α, α-dichlorinated and α, α, α-trichlorinated imines or reduction of α, α- dihaloaldimines, were subjected to a reactivity study and turned out to be remarkably stable compounds. In general, only the bases KOtBu and NaOMe cause a 1, 2-dehydrochlorination with formation of unsaturated α-chloroimines or unsaturated α, α-dichloroimines. ...
[Griller, David; Nonhebel, Derek C.; Walton, John C. Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999), 1983 , # 9 p. 1373 - 1379]