Alkylation by alkyl halides and oxonium salts of enamines derived from a series of sterically hindered amines was studied. Cyclohexanone enamines of diisobutylamine, n- butylisobutylamine, and 2, 2-dimethylpyrrolidine were found in some cases to give improved yields of C-alkylated products. Application to enamines of mono-and disubstituted acetaldehydes led to a useful procedure for the C-alkylation of such aldehydes by simple ...
