The final product (IV) in the sequence of reactions is :
Alcohols reaction with phosphorus trihalides -
Form alkyl halides
- wherein
X = Cl, Br, I
Reaction of Haloalkanes with Mg in presence of ether -
Grignard reagent is obtained
- wherein
Cleavage of ether by acid -
– Products forms are alcohol and haloalkane.
– When HX is in excess
- wherein