2-Formylphenylboronic acid → 2-(2-Methyl-5-phenylpyridine-3-carbonyl)benzaldehyde

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

S-(4-methylphenyl) 2-methyl-5-phenylpyridine-3-carbothioate (100 mg, 0.31 mmol), copper (I) thiophene-2-carboxylate (89.6 mg, 0.47 mmol), Pd2 dba3CHCl3 (26 mg, 0.025 mmol), tri-2-furylphosphine (17.3 mg, 0.074 mmol) and 2-formylphenylboronic acid (51.7 mg, 0.34 mmol) were combined in a dry flask. The flask was purged with argon and 3.0 mL of THF were added. Argon was bubbled through the solution for 5 minutes and the solution was stirred and heated to 50° C. After 18 hours, the reaction mixture was diluted with EtOAc, washed with 1N HCl, brine, dried over sodium sulfate, filtered, concentrated and purified by flash chromatography (100-70% hexanes/EtOAc gradient) to afford the title compound. LRMS (APCI) calculated for C20H16NO2 [M+H]+, 302.1; found 302.1.

Herkunft & Nachweise