3-Amino-9-ethylcarbazole → HCID 86729772, compound

Participants

Reaction Steps

A solution of the compound obtained in Step 1 (795 mg, 2.85 mmol), 9-ethyl-9H-carbazol-3-amine (600 mg, 2.85 mmol), HATU (1085 mg, 2.85 mmol) and TEA (0.437 mL, 3.14 mmol) in DMF (5 mL) was stirred at room temperature for 14 hr. To the reaction mixture was added brine at room temperature, and the mixture was extracted with ethyl acetate. The organic layer was washed with water and saturated brine, and dried, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (solvent gradient; 10 to 100% ethyl acetate/hexane), and crystallized from ethyl acetate and ethanol to give the title compound (82 mg, 0.174 mmol, 6.10%) as colorless crystals.

Provenance & Evidence