6-Bromonaphthalene-2-carbaldehyde → (E)-4-(2-(6-bromonaphthalene-2-yl)-1-phenylvinyl)-N,N-diphenylaniline

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Reaction Steps

N,N-diphenyl-4-(phenyl(trimethylsilyl)methyl) aniline (5.0 g, 12.3 mmol) was dissolved in purified tetrahydrofuran (30 mL) under a nitrogen atmosphere, and n-butyllithium (8.4 mL, 13.5 mmol) was slowly added thereto at −78° C. The reaction mixture solution was stirred at room temperature for 8 hours. 6-bromo-2-naphthaldehyde (2.9 g, 12.3 mmol) dissolved in tetrahydrofuran (10 mL) was added thereto at room temperature. The reaction mixture solution was stirred at room temperature for 24 hours. The reaction mixture solution was subjected to extraction with dichloromethane and distilled water, and the extracted material is subjected to column chromatography (hexane:dichloromethane=9:1). The reaction solvent was removed, and then the residue material was dried in vacuum to thereby obtain a pale yellow solid (4.5 g, yield: 66%).

Provenance & Evidence