2,4,6-Trimethylbenzoyl chloride → [11-(2-Ethylhexyl)-5-(4-fluorobenzoyl)-11H-benzo[a]carbazol-8-yl]-(2,4,6-trimethylphenyl)-methanone

Participants

Reaction Conditions

Reaction Steps

To [11-(2-ethylhexyl)-11H-benzo[a]carbazol-5-yl]-(4-fluorophenyl)-methanone (2.00 g, 4.43 mmol) in chlorobenzene (12 mL) are added AlCl3 (1.24 g, 9.30 mmol) and 2,4,6-trimethylbenzoyl chloride (0.85 g, 4.65 mmol) at 0° C. After stirring for 2 hours at 65° C., the reaction mixture is poured into ice-water. The crude product is extracted with CH2Cl2, and washed with water and brine. After drying over MgSO4 and concentration, the crude product is purified by column chromatography on silica gel eluting with a mixed solvent of CH2Cl2 and n-hexane (4:1) to obtain a yellow solid (1.39 g, 52%). The structure is confirmed by 1H-NMR spectrum (CDCl3). δ [ppm]: 0.83 (t), 0.92 (t), 1.19-1.47 (m), 2.13 (s), 2.26-2.35 (m), 2.35 (s), 4.74-4.78 (m), 6.93 (s), 7.16 (t), 7.56-7.59 (m), 7.67 (t), 7.93-7.98 (m), 8.28 (s), 8.36 (d), 8.55 (br), 8.62 (d); 19F-NMR spectrum (CDCl3). δ [ppm] −105.13.

Provenance & Evidence