4-Bromo-1,1-difluorobut-1-ene → 4,4-Difluorobut-3-enyl thioacetate

Beteiligte Stoffe

Reaktionsschritte

Potassium thioacetate (1.98 g), 4-bromo-1,1-difluorobut-1-ene (3.0 g) and tetra-n-butylammonium bromide (0.3 g, catalyst) were stirred at the ambient temperature under nitrogen for 5 hours and stored for 18 hours. The mixture was distilled using a Kugelrohr apparatus to give 4,4-difluorobut-3-enyl thioacetate as a colourless liquid (1.12 g); 1H NMR; δ 2.25(2H,m); 2.30(3H,s); 2.90(2H,t); 4.20(1H,m); (bp 115° C. at 120 mmHg).

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