Phenol → Dibenzofuran
Reaction equation
[C:1]1([OH:7])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1>O=[Th]=O>[C:1]1([O:7][C:1]2[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH:5]1[C:6]2[C:2]3[CH:3]=[CH:4][CH:5]=[CH:6][C:1]=3[O:7][C:1]=2[CH:2]=[CH:3][CH:4]=1Participants
4
Reactant 1
Product 2
Reagents, catalysts & solvents 1
Procedure
However, it is more desirable to prepare diaryl ethers by the dehydration of phenols. The dehydration was first reported by P. Sabatier and A. Mailhe (Compt. Rend., 151, 1910, 492-494). They passed phenol over a thoria catalyst at 410° C. and atmospheric pressure to obtain diphenyl oxide and dibenzofuran as a byproduct.
Workup
- customat 410° C.
Sources & evidence
- ORD record
- ord-37023ed916c74e09a66163fff5bdd9f1
- Source dataset
- uspto-grants-1999_07
- Patent number
- US05925798
Reaction notes
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