Dimethylformamide → HCID 86681772, compound

Participants

Reaction Steps

Alternate Preparation. This procedure uses DABCO as a more economical substitute for (4s)-quinuclidin-3-ol. A 1 L flask was charged with 2-bromo-5-fluorobenzaldehyde (13.4 g, 66.0 mmol), DABCO (14.81 g, 132 mmol), DMF (53.6 mL) and water (13.4 mL). To this reaction mixture was added tert-butyl acrylate (12.68 g, 99.0 mmol). The mixture was then stirred at rt for 12 h. At this time TLC indicated consumption of starting material. The reaction mixture was diluted with 25 mL of water and then extracted with two 100 mL portions of MTBE. The combined organic phases were washed with 0.1N HCl, water and brine. It was then dried over MgSO4, filtered and concentrated to yield 25 g (>100%) of the product as a colorless oil which was used without further purification.

Provenance & Evidence