S. Bouquillon et al., Access to enimines via titanium tetrachloride-promoted condensation of amines with arylenones, SYN COMMUN, 31(1), 2001, pp. 39-45
The effective one-step synthesis of conjugated arylenimines from the corres
ponding alpha'-aryl-alpha,beta -enones and amines is carried out in the pre
sence of TiCl4. Although these adducts are air- and moisture-sensitive, the
y have thus been easily obtained with fair yields, while some other literat
ure procedures were unsuccessful.