1-Butanol, 4-bromo-, 1-acetate → HCID 54697047, compound
Reaction equation
[CH2:1]([O:3][C:4]1[C:5](=[O:16])[O:6][C:7]2[CH:14]=[CH:13][C:12]([OH:15])=[CH:11][C:8]=2[C:9]=1[OH:10])[CH3:2].[C:17]([O:20][CH2:21][CH2:22][CH2:23][CH2:24]Br)(=[O:19])[CH3:18]>>[CH2:1]([O:3][C:4]1[C:5](=[O:16])[O:6][C:7]2[CH:14]=[CH:13][C:12]([O:15][CH2:24][CH2:23][CH2:22][CH2:21][O:20][C:17](=[O:19])[CH3:18])=[CH:11][C:8]=2[C:9]=1[OH:10])[CH3:2]Participants
3
Procedure
In the same manner as in Reference Example 1, except that an equimolar amount of 3-ethoxy-4,6-dihydroxy-2H-1-benzopyran-2-one was used in place of 3-ethoxy-4,5-dihydroxy-2H-1-benzopyran-2-one, and 4-bromobutyl acetate was used in place of 2-bromoethyl acetate in Reference Example 1, 3-ethoxy-4-hydroxy-6-(4-acetoxybutoxy)-2H-1-benzopyran-2-one was obtained.
Sources & evidence
- ORD record
- ord-4cca41e617044a1fa9ee3c877a9a3222
- Source dataset
- uspto-grants-2003_12
- Patent number
- US06670391B2
Reaction notes
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