1,2-Dichloro-4-nitrobenzene → HCID 66233216, compound

Participants

Reaction Steps

1,2-Dichloro-4-nitrobenzene (19.2 g), 12.9 g of 5-chloropyridine-2-ol, and 10.4 g of potassium carbonate were added to 50 mL of dimethylacetamide, and the mixture was allowed to react at 90 to 110° C. for 15 hr. The reaction mixture was cooled, ethyl acetate and brine were then added thereto, followed by separation and washing with brine. The ethyl acetate layer was concentrated, and the precipitated crystals were collected by filtration. The filtrate was concentrated, and the crude product thus obtained was purified by column chromatography on silica gel (BW300, manufactured by Fuji Sylysia Chemical Ltd., solvent: n-hexane/ethyl acetate) to give 15.75 g of 5-chloro-2-(2-chloro-4-nitrophenoxy)pyridine (yield 55.2%).

Provenance & Evidence