3-Nonen-2-one
Número de catálogo B088694
Key on ui cas rn:
14309-57-0
Peso molecular: 140.22 g/mol
Clave InChI: HDKLIZDXVUCLHQ-UHFFFAOYSA-N
Atención: Solo para uso de investigación. No para uso humano o veterinario.
Patent
US09394510B2
Procedure details
To a stirring solution of sodium methoxide (32.4 g, 0.60 mol) and dimethyl malonate (90 g, 0.68 mol) in 230 mL of anhydrous methanol was added portion wise 75 g (0.48 mol) of 90% 3-nonen-2-one. The reaction mixture was then refluxed for 3 h under N2 and allowed to cool to room temperature. The solvent was distilled under reduced pressure and the residue dissolved in 350 mL of water. The slurry of white crystals and the almost clear solution was extracted thrice with 80 mL of chloroform. The aqueous layer was acidified to pH 4 with concentrated HCl and the white precipitate that formed was allowed to stand overnight prior to filtration. The crystals were dried at 50° C. under high vacuum for 5 hours to yield 106.5 g (0.4416 mol) (92%) of methyl 6-n-Pentyl-2-hydroxy-4-oxo-cyclohex-2-ene-1-carboxylate (mp 96-98 C). The product was recrystallized using a mixture of petroleum ether:ethyl acetate (9:1), and gave 94 g of pure methyl 6-n-Pentyl-2-hydroxy-4-oxo-cyclohex-2-ene-1-carboxylate (melting point of 98-100 C).
Name
sodium methoxide
Quantity
32.4 g
Type
reactant
Reaction Step One
Identifiers
|
REACTION_CXSMILES
|
C[O-].[Na+].[C:4]([O:11][CH3:12])(=[O:10])[CH2:5][C:6]([O:8]C)=O.[CH3:13][C:14](=[O:22])[CH:15]=[CH:16][CH2:17][CH2:18][CH2:19][CH2:20][CH3:21]>CO>[CH2:17]([CH:16]1[CH:5]([C:4]([O:11][CH3:12])=[O:10])[C:6]([OH:8])=[CH:13][C:14](=[O:22])[CH2:15]1)[CH2:18][CH2:19][CH2:20][CH3:21] |f:0.1|
|
Inputs
Step One
|
Name
|
sodium methoxide
|
|
Quantity
|
32.4 g
|
|
Type
|
reactant
|
|
Smiles
|
C[O-].[Na+]
|
|
Name
|
|
|
Quantity
|
90 g
|
|
Type
|
reactant
|
|
Smiles
|
C(CC(=O)OC)(=O)OC
|
|
Name
|
|
|
Quantity
|
75 g
|
|
Type
|
reactant
|
|
Smiles
|
CC(C=CCCCCC)=O
|
|
Name
|
|
|
Quantity
|
230 mL
|
|
Type
|
solvent
|
|
Smiles
|
CO
|
Conditions
Temperature
|
Control Type
|
AMBIENT
|
Other
|
Conditions are dynamic
|
1
|
|
Details
|
See reaction.notes.procedure_details.
|
Workups
TEMPERATURE
|
Type
|
TEMPERATURE
|
|
Details
|
The reaction mixture was then refluxed for 3 h under N2
|
|
Duration
|
3 h
|
DISTILLATION
|
Type
|
DISTILLATION
|
|
Details
|
The solvent was distilled under reduced pressure
|
DISSOLUTION
|
Type
|
DISSOLUTION
|
|
Details
|
the residue dissolved in 350 mL of water
|
EXTRACTION
|
Type
|
EXTRACTION
|
|
Details
|
The slurry of white crystals and the almost clear solution was extracted thrice with 80 mL of chloroform
|
CUSTOM
|
Type
|
CUSTOM
|
|
Details
|
the white precipitate that formed
|
FILTRATION
|
Type
|
FILTRATION
|
|
Details
|
to filtration
|
CUSTOM
|
Type
|
CUSTOM
|
|
Details
|
The crystals were dried at 50° C. under high vacuum for 5 hours
|
|
Duration
|
5 h
|
Outcomes
Product
Details
Reaction Time |
8 (± 8) h |
|
Name
|
|
|
Type
|
product
|
|
Smiles
|
C(CCCC)C1CC(C=C(C1C(=O)OC)O)=O
|
Measurements
| Type | Value | Analysis |
|---|---|---|
| AMOUNT: AMOUNT | 0.4416 mol | |
| AMOUNT: MASS | 106.5 g | |
| YIELD: PERCENTYIELD | 92% | |
| YIELD: CALCULATEDPERCENTYIELD | 92% |
Source
|
Source
|
Open Reaction Database (ORD) |
|
Description
|
The Open Reaction Database (ORD) is an open-access schema and infrastructure for structuring and sharing organic reaction data, including a centralized data repository. The ORD schema supports conventional and emerging technologies, from benchtop reactions to automated high-throughput experiments and flow chemistry. Our vision is that a consistent data representation and infrastructure to support data sharing will enable downstream applications that will greatly improve the state of the art with respect to computer-aided synthesis planning, reaction prediction, and other predictive chemistry tasks. |
