2-Methylpyridine → HCID 4738497, compound

Participants

Reaction Steps

The product of example 4, step (a) (34 g) was added to a solution of 2-picoline (20 ml) in POCl3 (150 ml) and the mixture refluxed for 24 hr. The reaction mixture was concentrated in vacuo to half its original volume and poured onto ice and then neutralized with ammonia, forming a brown gum. The aqueous phase was decanted off, and the organic residues dissolved in ethyl acetate. This solution was recombined with the aqueous phase, and refluxed for 1 hr. The organic phase was separated, evaporated, and the residue purified by silica gel chromatography, eluting with dichloromethane to afford the subtitled compound as a pale yellow solid (15.6 g).

Provenance & Evidence