2,5-Dibromopyridine → HCID 11328288, compound

Participants

Reaction Steps

1-(2,3-dihydro-5-benzofuranyl)-2,3,4,9-tetrahydro-1H-β-carboline (11.6 g, 40 mmol), 2,5-dibromopyridine (10.42 g, 44 mmol), Pd2dba3 (1.465 g, 1.6 mmol), dppp (1.32 g, 3.2 mmol) and NaOtBu (5.38 g, 56 mmol) were stirred in 60 mL DMF at 80° C. for 3 days. The reaction mixture was filtered through a plug of Celite with CH2Cl2. The reaction mixture was then concentrated, the crude mixture was then loaded on Foxy column (110 g silica gel) and eluted with ethyl acetate/hexane (3:7). The product crystallized out in test tubes. The product was concentrated and then recrystallized from THF to yield the product as yellow crystals.

Provenance & Evidence