3-Amino-9-ethylcarbazole → HCID 86729749, compound

Participants

Reaction Steps

To a solution of the compound obtained in Step 1 (0.23 g, 0.76 mmol), 3-amino-N-ethylcarbazole (159 mg, 0.76 mmol) and DIEA (0.396 mL, 2.27 mmol) in DMF (6 mL) was added HATU (359 mg, 0.94 mmol), and the mixture was stirred at room temperature for 14 hr. Water was poured into the reaction mixture, 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) to give the title compound (43.4 mg, 0.087 mmol, 11.56%) as a white powder.

Provenance & Evidence