Toluene → HCID 66995524, compound

Participants

Reaction Conditions

Reaction Steps

6 ml of aqueous 2 M sodium carbonate solution and 70 mg of tetrakistriphenylphosphine palladium were added to a toluene (15 ml) solution of 450 mg of (3-cyano-4-pyridin-3-ylphenyl)boronic acid and 412 mg of 2-chloroisonicotinic acid, and in an argon atmosphere, this was heated at 100° C. for 2 hours. 3 ml of ethanol was added, followed by further heating at 100° C. for 1 hour. Water was added to the reaction mixture, followed by extraction with chloroform. The organic layer was washed with brine, dried and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (chloroform:methanol=99:1 to 93:7) to obtain 127 mg of ethyl 2-(3-cyano-4-pyridin-3-ylphenyl)isonicotinate. F: 330.

Provenance & Evidence