2-Butene, 1,4-dibromo- → HCID 54196002, compound

Participants

Reaction Conditions

Reaction Steps

93 g of 1,4-dibromobut-2-ene are treated in 250 ml of dimethylformamide with 35.5 g of anhydrous sodium acetate and stirred for 1 hour at 100°C. The mixture is extensively freed from dimethylformamide on a rotary evaporator and the residue is partitioned between water and methylene chloride. The methylene chloride phase is dried over calcium chloride, filtered and concentrated. The residue is distilled under a water-jet vacuum, whereby the fractions are collected between 95° and 105°C at 10-15 mm; nD25 =1.502. There is obtained 1-acetoxy-4-bromobut-2-ene as a colourless liquid.

Provenance & Evidence