Hydrochloric Acid → HCID 18705820, compound

Participants

Reaction Steps

To a solution of methyl 2-(dipropylamino)-2,3-dihydro-6-hydroxy-1H-indene-5-caboxylate (86, 0.93 g, 2.9 mmol) and formamide (1.2 mL, 29 mmol) in DMF (20 mL) at 100° C. was added 25% sodium methoxide in methanol (1.3 mL, 5.8 mmol) dropwise. The mixture stirred for 4 h. The reaction was quenched with saturated NaHCO3 and extracted with EtOAc. The organic layer is washed with water, brine dried (MgSO4), filtered and concentrated to give the crude product. Chromatographic purification yielded pure product as an oil that was converted into the HCl salt and crystallized from EtOAc/MeOH to give the title compound 87 as a white solid (m.p. 266-267° C.).

Provenance & Evidence