sodium tetrahydroborate; trifluoroacetic acid in dichloromethane T=0°C; 0.166667 h;

sodium tetrahydroborate in diethylene glycol dimethyl ether; water T=20°C; 0.5 h; Yield given. Yields of byproduct given;

tert-butylmagnesium bromide in diethyl ether T=0°C; 2 h; Yield given. Further byproducts given. Yields of byproduct given;

tert-butylmagnesium bromide in diethyl ether T=0°C; 2 h; Yield given. Further byproducts given. Yields of byproduct given;

lithium aluminium tetrahydride; 1,4,7,10-tetraoxa-cyclododecane 1.) EE, 20 deg C, 1 h, 2.) benzene, reflux, 2 h; Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;