Triphenylphosphine → HCID 21541001, compound

Participants

Reaction Steps

A solution of 1.82 g. (6.80 mmoles) of the N-trimethylacetyl-5-bromovaleramide prepared above and 2.67 g. (10.2 mmoles) of triphenylphosphine in 18 ml. of acetonitrile was heated to reflux under nitrogen for 96 hours. The solution was concentrated and the resultant solid was triturated with benzene (4x). The triturated solid was purified by silica gel column chromatography using first ethyl acetate to remove high Rf impurities then with a 9:1 mixture of methylene chloride:methanol. The salt, [4-trimethylacetylaminocarbonylbutyl]triphenylphosphonium bromide, was obtained as crystals from methylene chloride:ethyl acetate weighing 0.750 g. melting at 133.5°-138°.

Provenance & Evidence