Electric Literature of 50548-45-3, A common heterocyclic compound, 50548-45-3, name is 1-Bromodibenzo[b,d]furan, molecular formula is C12H7BrO, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
To a 500 ml round bottom flask in a nitrogen atmosphereCompound 1-Bromobenzofuran (10.0 g, 40.65 mmol),N – ([1,1′-biphenyl] -4-yl) – [1,1 ‘: 4′, 1 ” – terphenyl]-4-amine ((N – ([1,1’-biphenyl] -4-yl) – [1,1 ‘: 4’, 1 ” – terphenyl]-4-amine)(17.75 g, 44.72 mmol)Xylene(Xylene)After completely dissolved Sodium tert-butoxide(sodium tert-butoxide)(5.08 g, 52.85 mol) was added,Bis (tri-tert-butylphosphine) palladium (0)(Bis (tri-tert-butylphosphine) palladium (0)) (0.21 g, 0.41 mmol)And the mixture was heated and stirred for 6 hours. After the temperature was lowered to room temperature and the salts were removed by filtration, the xylene was concentrated under reduced pressure and recrystallized from ethyl acetate (250 ml) to obtain Compound (4) (18.89 g, yield: 82%)
The synthetic route of 50548-45-3 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; LG CHEM, LTD.; KIM, Jin Joo; HONG, Sung gil; CHA, Yong bum; (27 pag.)KR2017/94665; (2017); A;,
Bromide – Wikipedia,
bromide – Wiktionary