Acetonitrile → 11-Carbethoxyundecyltriphenylphosphonium bromide

Participants

Reaction Steps

Ethyl-11-bromoundecanoate (36.0 g, 123 mmol) and acetonitriie (200 ml) were placed in a flame-dried three-neck 500 ml round-bottomed flask equipped with a reflux condenser. Triphenyl phosphine (35.5 g, 135 mmol) was added to the solution and the reaction mixture was refluxed for 36 hours under anhydrous conditions. After the reaction mixture had cooled to room temperature, the acetonitrile was removed under reduced pressure. The crude product was triturated with ether. The solid was filtered and washed with ether to yield a pure compound 3, 11-carbethoxyundecyltriphenylphosphonium bromide (56.69 g, 83% yield).

Provenance & Evidence