Show how you would convert propan-1-ol to the following compounds using tosylate intermediates. You may use whatever additional reagents are needed.
(b) propan-1-amine, CH3CH2CH2NH2
(c)CH3CH2CH2OCH2CH3 ethyl propyl ether
(d) CH3CH2CH2CN butyronitrile
Tosylate esters (tosylates) are typically formed from alcohols with reaction with Ts-Cl and pyridine (py)Tosylate groups undergo a variety of SN2 reactions..
The tosylate is such a good leaving group because it is a stable anion.