Ethyl 3-bromopropionate → HCID 54696849, compound

HRID 434103Notes

Reaction equation

HRID 434103 reaction equation
[CH2:1]([O:5][C:6]1[C:7](=[O:18])[O:8][C:9]2[C:16]([OH:17])=[CH:15][CH:14]=[CH:13][C:10]=2[C:11]=1[OH:12])[CH2:2][CH2:3][CH3:4].Br[CH2:20][CH2:21][C:22]([O:24][CH2:25][CH3:26])=[O:23]>>[CH2:1]([O:5][C:6]1[C:7](=[O:18])[O:8][C:9]2[C:16]([O:17][CH2:20][CH2:21][C:22]([O:24][CH2:25][CH3:26])=[O:23])=[CH:15][CH:14]=[CH:13][C:10]=2[C:11]=1[OH:12])[CH2:2][CH2:3][CH3:4]

Participants

3

Reactant 2

HCID 68320Ethyl 3-bromopropionateHCID 54697050HCID 54697050, compound

Product 1

HCID 54696849HCID 54696849, compound

Procedure

In the same manner as in Reference Example 3, except that an equimolar amount of 3-butoxy-4,8-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-butoxy-4-hydroxy-8-(2-ethoxycarbonylethoxy)-2H-1-benzopyran-2-one was obtained.

Sources & evidence

ORD record
ord-ecdac90b34654bdda529e01a2113d51e
Source dataset
uspto-grants-2003_12
Patent number
US06670391B2

Reaction notes

Loading…