Halogens Flashcards
1
Q
R&C for FRS to prepare halogennoalkanes
A
X2(l), UV light
obs: decolourises reddish brown Br2
or
decolourises greenish yellow Cl2
2
Q
R&C for e.philic substitution w arenes
A
X2 with Fe/anhydrous FeX3 as catalyst, r.t.
3
Q
R&C for formation of alcohols from halogens
A
NaOH/KOH, heat
4
Q
R&C for formation of nitriles (step-up)
A
KCN/NaCN, ethanol, heat
5
Q
R&C for formation of amines
A
excess NH3, ethanol, heat in sealed tube
