3-метилбутанол-1 => 3-метилбутаналь [условия окисления - Cu (или KMnO4 или K2Cr2O7), температура]

                                                                                                  O

                                                                                                //

CH3 - CH - CH3 -CH2    + O2 =>  H3C - CH - CH3 - C    + H2O 

              |                    \                                      |                    \

            CH3               OH                              CH3                H

3,4-диметилгексанол-1 => 3,4 диметилгексаналь [условия окисления - Cu (или KMnO4 или K2Cr2O7), температура]

                                                                                                                                         O

                                                                                                                                       //

CH3 - CH2 - CH - CH - CH3 -CH2    + O2 => CH3 - CH3 - CH - CH - CH3 - C   + H2O

                           |        |                  \                                                  |        |                   \

                       CH3  CH3             OH                                           CH3 CH3              H