1-Naphthol → ethyl 7-bromo-3-(3-(naphthalen-1-yloxy)propyl)-1H-indole-2-carboxylate

Participants

Reaction Steps

To a mixture of Example 1B (10.87 g), 1-naphthol (5.77 g) and triphenylphosphine (10.5 g) in THF (100 mL) was added di-tert-butyl azodicarboxylate (9.21 g). The mixture was stirred for 3 days, concentrated, redissolved in dichloromethane, washed with water and brine and dried (MgSO4), filtered and concentrated. The concentrate was purified by flash column chromatography on silica gel with 0-10% ethyl acetate in hexanes. The product was recrystallized from hexanes.

Provenance & Evidence