4-Bromobiphenyl → HCID 18328732, compound

Participants

Reaction Steps

10.0 g (0.043 mol) of 4-bromobiphenyl were suspended in 600 ml of toluene together with 3.7 g (0.052 mol) of pyrrolidine and 6.2 g (0.0642 mol) of sodium tertiary-butoxide and 900 mg of the catalyst dichlorobis(tritolylphosphine)palladium(II) were added. The mixture was heated to reflux for 8 h, cooled, treated with water/ethyl acetate, and the organic phase was washed with water, dried over sodium sulfate and concentrated. The residue was dissolved in approximately 300 ml of tertiary-butyl methyl ether and the hydrochloride of the product was precipitated by addition of 50 ml of 1N ethereal HCl.

Provenance & Evidence