Methyl Benzoate → (Trifluoromethyl)benzene
Reaction equation
[C:1]1(S(C(F)(F)F)(=O)=O)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C(O[K])(C)(C)C.C(OC)(=O)C1C=CC=CC=1.[F:30][C:31]([F:41])([F:40])C(C1C=CC=CC=1)=O.IC1C=CC=CC=1>[Cu](I)I>[F:30][C:31]([F:41])([F:40])[C:1]1[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
The trifluoromethyl phenyl sulfone/tBuOK trifluoromethylation method can also be applied to other systems. For instance, methyl benzoate can be trifluoromethylated to generate 2,2,2-trifluoroacetophenone in 30% yield at about −50° C. to about −20° C. CF3Cu can be in situ generated with trifluoromethyl phenyl sulfone/tBuOK and copper iodide (CuI), and then further react with iodobenzene at 80° C. for 20 h to give α,α,α-trifluorotoluene in 26% yield.
Workup
- customat about −50° C. to about −20° C
Sources & evidence
- ORD record
- ord-a6ef70945a064cf8aa5b23fae875897f
- Source dataset
- uspto-grants-2006_08
- Patent number
- US07087789B2
Reaction notes
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