Toluene → HCID 18931899, compound

Participants

Reaction Steps

35.4 g (87.87 mmol) of 3-(2',2'-diphenylvinyl)-9-ethylcarbazole (6a), 46.2 g (631.8 mmol) of DMF, 23.9 g (175.5 mmol) of zinc chloride, 80.7 g (526.6 mmol) of phosphorus oxychloride and 354 g of toluene were allowed to react and after treated in the same manner as with Example 1 (1). The crude product was treated by silica gel column chromatography (eluent; benzene/ethyl acetate=9/1 by volume), and recrystallized from a mixed solvent of toluene and heptane (3/2 by weight), thus obtaining 10.5 g of 3-(2',2'-diphenylvinyl)-6-formyl-9-ethylcarbazole.

Provenance & Evidence