Show how you would carry out the following syntheses. You must begin with the indicated chemical(s) and you may use any necessary inorganic or organic reagents. All your reactions must produce the desired products in good yields and in a reasonably pure state. 

a) c-OCH3 from CH3 CNH2 O c-OCH,CH3 b) from c) -CH,CO2H from O-CH3 d) -CNH2 from -CH=CH2