1 . Finkelstein Reaction
2 . Swarts Reaction
H3C – Br + AgF → H3C – F + AgBr Hg2F2 , COF2 and SbF3 can also be used as a reagent for Swarts reaction .
3 . Hunsdiecker Reaction
Physical Properties of Haloalkanes 1 . Boiling point orders
1 . R – I > R – Br > R – CI > R – F
2 . CH3 – ( CH2 ) 2 – CH2Br > ( CH3 ) 2 CHCH2Br > ( CH3 ) 3CBr 3 . CH3CH2CH2 > CH3CH2X > CH3X
2 . Bond strength of haloalkanes decreases as the size of the halogen atom increases . Thus , the order of bond strength is
CH3F > CR3Cl > CR3Br > CH3I
3 . Dipole moment decreases as the electronegativity of the halogen decreases .
4 . Haloalkanes though polar but are insoluble in water as they do not form hydrogen bonding with water .
5 . Density order is RI > RBr > RCl > RF ( For the same alkyl group ) CH3I > C2H5I > C3H7I