Answer:
The reaction of preparation of the Wittig salt occurs as follows:
C7H7Cl + C18H15P = C25H22ClP
Where C7H7Cl = benzyl chloride
C18H15P = Triphenylphosphine
C25H22ClP = benzyltriphenylphosphonium chloride
It is a synthesis reaction
Explanation:
To prepare the Wittig salt, 2.6 g of triphenylphosphine and 1.4 g of benzyl chloride, plus 15 mL of toluene should be added to a round bottom flask with magnetic stirring. It is placed in a bath and heated to reflux with refrigerant for 12 hours. Benzyltriphenylphosphonium Chloride will precipitate as colorless crystals, it must be filtered to collect them. These crystals are washed with petroleum ether at a temperature between 50-70°C and dried with heating for 1 h.
