3-Iodo-4,5-dimethoxybenzaldehyde → 5-Formyl-2,3-dimethoxybenzonitrile

Participants

Reaction Steps

3,4-dimethoxy-5-iodobenzaldehyde (41) (FIG. 22) (4.40 g, 15.07 mmole), copper cyanide (13.5 g, 150.7 mmole) and dry DMF (45 ml) were stirred under an argon atmosphere for 18 hours at 140° C. The reaction was cooled to room temperature, filtered through celite, and the filtrate concentrated to an oil in vacuo. The dark brown oil was purified through a short flash silica column using 11 hexane/ethyl acetate as eluent to yield 2.87 g (69%) of a white solid.

Provenance & Evidence