2-Bromopyridine → HCID 14098122, compound

Participants

Reaction Steps

A stirred solution of 187.5 ml of 1.6 M solution of butyllithium in hexane was cooled to -40° under nitrogen and 39.5 g (0.25 M) of 2-bromopyridine in 100 ml of ether added dropwise. The mixture was stirred 15 minutes at -40° and a solution of 41.5 g (0.25 M) of 3,4-dimethoxybenzaldehyde in 200 ml of ether added. After stirring at -15° for 45 minutes, the mixture was poured into 500 g ice/100 ml conc. HCl. The separated aqueous layer was made alkaline with conc. NH4OH, extracted with methylene chloride and the dried extract concentrated. The residual oil crystallized from benzene/hexane to give 3,4-dimethoxyphenyl-2-pyridyl carbinol, mp 92°-94°.

Provenance & Evidence