0
-CH?OH
step 1 Product A step 2 Product B step 3
-CH?-C-CH?
cyclohexylmethanol
1-cyclohexylpropan-2-one
A
B
step 1 step 2 step 3 step 1 step 2 step 3
Mg. ether NaCN 1. CH,MgBr 1. PBr, NaCN 1. CH,MgBr
2. H?O 2. H?O
C
D
step 1 step 2 step 3 step 1 step 2 step 3
PBry NaCN 1. LiAlH,, ether NaCN H?O* 1. CH,MgBr
2. H?O* 2. H?O
E
step 1 step 2 step 3
PBr, 1. CO? 1. CH,MgBr
2. H?O* 2. H?O
Synthesis of 1-cyclohexylpropan-2-one starting from cyclohexylmethanol requires
three steps. Which option is correct for the reactants required for these steps?