(E)-4-bromobut-2-en-1-ol

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 3.58 g of (E)-4-bromo-2-buten-1-ol are dissolved in 100 ml of acetone and treated with 9.84 g of K2CO3 and 3.4 ml of N-allyl-methyl-amine. The suspension is stirred at RT for 40 h., filtered and the crude product obtained after concentration is purified on silica gel with methylene chloride:methanol (gradient 9:1-3:1). 1.52 g of (E)-4-(allyl-methyl-amino)-but-2-en-1-ol are obtained as a colourless liquid, MS: m/e 141 (M). filtered the crude product obtained after concentration is purified on silica gel with methylene chloride

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 3.58 g of (E)-4-bromo-2-buten-1-ol are dissolved in 100 ml of acetone and treated with 9.84 g of K2CO3 and 3.4 ml of N-allyl-methyl-amine. The suspension is stirred at RT for 40 h., filtered and the crude product obtained after concentration is purified on silica gel with methylene chloride:methanol (gradient 9:1-3:1). 1.52 g of (E)-4-(allyl-methyl-amino)-but-2-en-1-ol are obtained as a colourless liquid, MS: m/e 141 (M). filtered the crude product obtained after concentration is purified on silica gel with methylene chloride