Reaktion #41965

Reaktionsgleichung

triphenylphosphine

3-bromopropionic acid

ether

→

title compound

Ausbeute 68.5%

(2-Carboxy-ethyl)-triphenyl-phosphonium bromide

Ausbeute 68.5%

Lösungsmittel

acetonitrile

Reaktionsbedingungen

Aufarbeitung

1. 1
   FiltrationFilter solids
2. 2
   Waschenrinse with ether
3. 3
   Sonstigedry solids under high vacuum

Vorschrift

Reflux a solution of triphenylphosphine (91.3 g, 348 mmol, 1.05 equivalents) and 3-bromopropionic acid (50.7 g, 331 mmol) in acetonitrile (250 ml) for three hours, allow to sit at room temperature overnight. Add ether (400 ml) and cool in the freezer for two hours. Filter solids, rinse with ether, and dry solids under high vacuum to obtain the title compound (94.1 g, 68%). NMR (400 MHz, CDCl3): δ 3.15 (m, 2H), 3.73 (m, 2H), 7.69-7.83 (m, 15H).

Quelle