Which of the following procedures would be best for achieving the following reaction ?

Which of the following prcedure would be best for achieving the following reaction ?

Which of the following procedures would be best for achieving for following reaction ?

Which of the following procedures would be best for prparing dimrthycyclohexylamine , C_(6)H_(11)N(CH_(3))_(2) ?

Which of the following procedures would be best for the preparation of phenyl benzyl ether ? C_(6)H_(5)OCH_(2)C_(6)H_(5)

Which of the following procedures would be best for the preparation of phenyl benzyl ether? C_6H_5OCH_2C_6H_5

Which of the following reagents would best accomplish the following transformations?

Which of the following procedures would be best for preparing isobutylisopropylamine, (CH_(3))_(2)CHNHCH_(2)CH(CH_(3))_(2) ?