Tetrabutylammonium Fluoride → HCID 59455029, compound

Participants

Reaction Conditions

Reaction Steps

4-Bromo-2-fluoro-N-methyl-benzamide (100 mg, 0.5 mmol), 5-ethynyl-2,8-dimethyl-2,3,4,4a,5,9b-hexahydro-1H-pyrido[4,3-b]indole (123 mg, 0.5 mmol), dichlorobis(triphenylphosphine) palladium(II) (17 mg, 0.25 mmol) and TBAF.3H2O (475 mg, 1.5 mmol) were mixed and stirred at 80° C. for 30 min under nitrogen. The progress of reaction was monitored by TLC and LCMS. The mixture was cooled to RT, water was added, and extracted with EtOAc. The organic layer was washed with water (1×10 mL), dried over anhydrous sodium sulfate and concentrated under reduced pressure. The crude product obtained was purified by column chromatography using silica (100-200 mesh) and 0-2% MeOH:DCM as eluent. 1H NMR (CDCl3, free base) δ (ppm): 8.10 (t, 1H), 7.42 (d, 1H), 7.36 (d, 1H), 7.22 (d, 1H), 7.18 (m, 2H), 6.70 (bs, 1H), 3.95 (m, 2H), 3.20 (m, 4H), 3.05 (d, 3H), 2.80 (s, 3H), 2.42 (s, 3H).

Provenance & Evidence