Sodium Carbonate → HCID 9905796, compound

Participants

Reaction Conditions

Reaction Steps

A solution of (Z)-1,3-dihydro-4-iodo-3-[(1H-pyrrol-2-yl)methylene]-2H-indol-2-one (40 mg, 0.119 mmol) (Starting Material 1), 2M aqueous Na2CO3 solution (119 μL , 0.238 mmol), (Ph3P)4Pd (3 mg, 0.003 mmol) (Aldrich), and 1-naphthaleneboronic acid (22.5 mg, 0.131 mmol) (Lancaster) in 3 mL of a 3:1 mixture of 1,2-dimethoxyethane:distilled water was heated at 100° C. under a nitrogen atmosphere for 20 h. The reaction mixture was allowed to cool to room temperature and then directly purified by flash chromatography (Merck Silica gel 60, 230-400 mesh, 20% ethyl acetate-hexanes then 30% ethyl acetate-hexanes elution) to yield a crude solid. Recrystallization from chloroform-pentane provided pure (Z)-1,3-dihydro-4-(1-naphthalenyl)-3-[(1H-pyrrol-2-yl)methylene]-2H-indol-2-one (yield 31 mg, 78%) as yellow crystals (mp 210-212° C.).

Provenance & Evidence