Ethyl 3-bromopropionate → HCID 54696791, compound

HRID 434096Notes

Reaction equation

HRID 434096 reaction equation
[CH2:1]([O:7][C:8]1[C:9](=[O:20])[O:10][C:11]2[CH:18]=[C:17]([OH:19])[CH:16]=[CH:15][C:12]=2[C:13]=1[OH:14])[CH2:2][CH2:3][CH2:4][CH2:5][CH3:6].Br[CH2:22][CH2:23][C:24]([O:26][CH2:27][CH3:28])=[O:25]>>[CH2:1]([O:7][C:8]1[C:9](=[O:20])[O:10][C:11]2[CH:18]=[C:17]([O:19][CH2:22][CH2:23][C:24]([O:26][CH2:27][CH3:28])=[O:25])[CH:16]=[CH:15][C:12]=2[C:13]=1[OH:14])[CH2:2][CH2:3][CH2:4][CH2:5][CH3:6]

Participants

3

Reactant 2

HCID 68320Ethyl 3-bromopropionateHCID 546907943-(Hexyloxy)-4,7-dihydroxy-2H-1-benzopyran-2-one

Product 1

HCID 54696791HCID 54696791, compound

Procedure

In the same manner as in Reference Example 3, except that an equimolar amount of 3-hexyloxy-4,7-dihydroxy-2H-1-benzopyran-2-one was used in place of 3-hexyloxy-4,5-dihydroxy-2H-1-benzopyran-2-one, and ethyl 3-bromopropionate was used in place of ethyl bromoacetate in Reference Example 3, 3-hexyloxy-4-hydroxy-7-(2-ethoxycarbonylethoxy)-2H-1-benzopyran-2-one was obtained.

Sources & evidence

ORD record
ord-f5af45f3f77444c093257d823f1c25d5
Source dataset
uspto-grants-2003_12
Patent number
US06670391B2

Reaction notes

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