Ethyl Bromide → HCID 22759318, compound

Participants

Reaction Steps

To the Grignard reagent prepared from magnesium (12.2 g., 0.5 mole) and bromoethane (54.5 g., 0.5 mole) in tetrahydrofuran (400 ml.) is added, dropwise, during 30 minutes, a solution of tetrahydro-2-(2-propynyloxy)-2H-pyran (67.3 g., 0.5 mole) in tetrahydrofuran (50 ml.). The mixture is stirred at room temperature for 1 hour and then treated, dropwise, during 1 hour with 4-fluorophenoxyacetaldehyde (61.6 g., 0.4 mole). The resulting mixture is heated at reflux for 1 hour, then cooled and poured into an ice cold saturated solution of ammonium chloride in water.

Provenance & Evidence