1: 1-bromo-4-methyl-pentane With magnesium in diethyl ether 3 h; Inert atmosphere; 2: With copper (I) cyanide in tetrahydrofuran; diethyl ether T=-40°C; 0.333333 h; Inert atmosphere; 3: methyloxirane in tetrahydrofuran; diethyl ether T=0°C; 12 h; Inert atmosphere;

Hydrogenation;