Carbanions generated from 2, 4, 4-trimethyl-2-oxazoline (1a), 2-benzyl-4, 4-dimethyl-2- oxazoline (1b), 2, 4-dimethylthiazole (13a), 2-benzyl-4-methylthiazole (13b), N, N- dimethylacetamide (17a), tert-butyl acetate (17b), ethyl phenylacetate (17c), N-methyl-N- phenyl-2-butenamide (22), tert-butyl 3-butenoate (25), and dimethyl methylphosphonate (29a) by means of KNH2 in liquid NH3 all reacted with 2-bromopyridine (2) via ...