Question

Propose routes to the following compounds from propyl bromide and any necessary organic or inorganic reagents:

a. propyllithium
b. propylmagnesium bromide
c. propylzinc bromide
d. Dipropylzinc

Answer 1

a. reacting propyl bromide with lithium metal
b reacting propyl bromide with magnesium metal ( Grignard Reagent Synthesis)
c. prepare zinc by reducing ZnCl2 with potassium metal to obtain pure zinc (Riecke Zinc) react Riecke Zinc with propyl bromide to get Propylzinc bromide
d. react propyl bromide with zinc metal directly