Potassium Hydroxide → HCID 23320895, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 5-bromo-3-methylbenzofuran-2-yl pyrid-3-yl ketone free base (2.67 g) and hydrazine hydrate (1.80 g) in ethylene glycol (30 ml) was heated at 120° C. for 2.5 hours. The mixture was cooled, potassium hydroxide (1.80 g) was added and the temperature was raised to 120° again and maintained at this temperature for 1 hour. Dilution with water and ether extraction gave an oil which was chromatographed on silica gel. Elution with chloroform gave a solid which was crystallised from petrol (b.p. 80°-100°) to give 5-bromo-3-methyl-2-(3-pyridylmethyl)benzofuran (2.00 g), m.p. 57°-58°.

Provenance & Evidence