Triphenylphosphine → [(4-Bromophenyl)methyl]triphenylphosphanium bromide

Participants

Reaction Steps

First, 25.2 g (101 mmol) of 4-bromobenzyl bromide and 100 mL of acetone were put into a 200 mL conical flask, and 29.1 g (111 mmol) of triphenylphosphine was added thereto. The mixture was stirred for 23 hours at room temperature. After the reaction, a precipitate in the reaction mixture was collected by suction filtration to give 50.5 g of a white powdered solid of (4-bromobenzyl)triphenylphosphoniumbromide (yield: 97.6%). A synthesis scheme (f-1) of (4-bromobenzyl)triphenylphosphoniumbromide is shown below.

Provenance & Evidence