Boron tribromide → 4-Hydroxy-2-(1-methylimidazol-2-yl)benzo(b)furan

HRID 460612Notes

Reaction equation

C[O:2][C:3]1[C:11]2[CH:10]=[C:9]([C:12]3[N:13]([CH3:17])[CH:14]=[CH:15][N:16]=3)[O:8][C:7]=2[CH:6]=[CH:5][CH:4]=1.B(Br)(Br)Br>>[OH:2][C:3]1[C:11]2[CH:10]=[C:9]([C:12]3[N:13]([CH3:17])[CH:14]=[CH:15][N:16]=3)[O:8][C:7]=2[CH:6]=[CH:5][CH:4]=1

Participants

Reactant 2

HCID 25134Boron tribromide

HCID 227291464-Methoxy-2-(1-methylimidazol-2-yl)benzo(b)furan

Product 1

HCID 1357943224-Hydroxy-2-(1-methylimidazol-2-yl)benzo(b)furanYield 64.5%

Procedure

By the reactions in the same manner as in Starting Material Synthesis Example 5 using 4-methoxy-2-(1-methylimidazol-2-yl)benzo(b)furan (2.00 g) and boron tribromide (2.0 ml), the title compound (1.21 g) was obtained as pale-yellow crystals, melting point >265° C. (decomposition)

Sources & evidence

ORD record: ord-4451b1357b534424b19d7ec9bb43cfc4
Source dataset: uspto-grants-2007_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07196199B2

Reaction notes

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