Vinyl hexanoate → HCID 11458842, compound
Reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]([OH:15])[CH2:9][C:10]([O:12][CH2:13][CH3:14])=[O:11])=[CH:4][CH:3]=1.[C:16](OC=C)(=[O:22])[CH2:17][CH2:18][CH2:19][CH2:20][CH3:21]>>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([CH:8]([OH:15])[CH2:9][C:10]([O:12][CH2:13][CH3:14])=[O:11])=[CH:6][CH:7]=1.[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([CH:8]([O:15][C:16](=[O:22])[CH2:17][CH2:18][CH2:19][CH2:20][CH3:21])[CH2:9][C:10]([O:12][CH2:13][CH3:14])=[O:11])=[CH:6][CH:7]=1Participants
4
Procedure
The mixture of 5.0 g of ethyl 3-(4-chlorophenyl)-3-hydroxypropionate, 1.6 g of vinyl caproate and 2.0 g of lipase PS was stirred at room temperature for 13 days. After the lipase was removed by filtration, the filtrate was eluted by column chromatography (eluting solution; 9/1 of toluene/ethyl acetate) to obtain 2.1 g of (-)-ethyl 3-(4-chlorophenyl)-3-hydroxypropionate and 2.7 g of (+)-ethyl 3-(4-chlorophenyl)-3-caproyloxypropionate, respectively.
Workup
- customAfter the lipase was removed by filtration
- washthe filtrate was eluted by column chromatography (eluting solution; 9/1 of toluene/ethyl acetate)
Sources & evidence
- ORD record
- ord-c6f2b3b82bce4229b127ed914c233288
- Source dataset
- uspto-grants-1993_04
- Patent number
- US05202457
Reaction notes
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