4'-METHOXYVALEROPHENONE
- CAS NO.:1671-76-7
- Empirical Formula: C12H16O2
- Molecular Weight: 192.25
- MDL number: MFCD00027236
- EINECS: 216-803-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2022-12-21 16:56:50
What is 4'-METHOXYVALEROPHENONE?
Preparation
To a solution of N-methoxy-N-methyl-2-pyridyl urethane (364.4 mg, 2 mmol) in THF (6 mL), p-methoxyphenylmagnesium bromide (0.25 m in THF, 8 mL, 2 mmol) was added dropwise over a period of 10 min at 0 °C under nitrogen atmosphere. Stirring was maintained for a further 5 min and then n-butyllithium (1.60 m in hexane, 1.5 mL, 2.4 mmol) was added directly to the mixture (one-pot process). The reaction mixture was stirred for 0.5 h, while warming to room temperature, and was then quenched with 1 n HCl (5 mL). After evaporation of the THF, the concentrated mixture was poured into 1 n HCl (30 mL) and the aqueous phase was extracted with dichloromethane (3*20 mL). The combined organic extracts were dried over MgSO4, filtered, and concentrated to dryness in vacuo. The crude product was purified by column chromatography on silica gel (EtOAc/n-hexane, 1:4) to give 369.1 mg (96%) of p-methoxyvalerophenone.
Preparation
To a solution of N-methoxy-Nmethyl- 2-pyridyl urethane (364.4 mg, 2 mmol) in THF (6 mL), p-methoxyphenylmagnesium bromide (0.25 m in THF, 8 mL, 2 mmol) was added dropwise over a period of 10 min at 0 ℃ under nitrogen atmosphere. Stirring was maintained for a further 5 min and then n-butyllithium (1.60 M in hexane, 1.5 mL, 2.4 mmol) was added directly to the mixture (one-pot process). The reaction mixture was stirred for 0.5 h, while warming to room temperature, and was then quenched with 1 N HCl (5 mL). After evaporation of the THF, the concentrated mixture was poured into 1 N HCl (30 mL) and the aqueous phase was extracted with dichloromethane (3×20 mL). The combined organic extracts were dried over MgSO4, filtered, and concentrated to dryness in vacuo. The crude product was purified by column chromatography on silica gel (EtOAc/n-hexane, 1:4) to give 369.1 mg (96%) of p-methoxyvalerophenone.
Synthesis Reference(s)
Chemistry Letters, 15, p. 165, 1986
Tetrahedron, 50, p. 11839, 1994 DOI: 10.1016/S0040-4020(01)89299-1
Properties of 4'-METHOXYVALEROPHENONE
Melting point: | 22-23.5 °C |
Boiling point: | 300 °C(Press: 739 Torr) |
Density | 0.988±0.06 g/cm3(Predicted) |
CAS DataBase Reference | 1671-76-7(CAS DataBase Reference) |
Safety information for 4'-METHOXYVALEROPHENONE
Signal word | Warning |
Pictogram(s) |
Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H302:Acute toxicity,oral |
Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 4'-METHOXYVALEROPHENONE
New Products
4-Aminotetrahydropyran-4-carbonitrile Hydrochloride (R)-3-Aminobutanenitrile Hydrochloride 4-AMINO-TETRAHYDRO-PYRAN-4-CARBOXYLIC ACID HCL 4-(Dimethylamino)tetrahydro-2H-pyran-4-carbonitrile 3-((Dimethylamino)methyl)-5-methylhexan-2-one oxalate 1,4-Dioxa-8-azaspiro[4.5]decane 5-Bromo-2-nitropyridine Nimesulide BP Aceclofenac IP/BP/EP Mefenamic Acid IP/BP/EP/USP Diclofenac Sodium IP/BP/EP/USP Ornidazole IP Diclofenac Potassium SODIUM AAS SOLUTION ZINC AAS SOLUTION BUFFER SOLUTION PH 10.0(BORATE) GOOCH CRUCIBLE SINTERED AQUANIL 5 BERYLLIUM AAS SOLUTION 2-Bromo-1-(bromomethyl)-3-chloro-5-nitrobenzene 2-Bromo-3-nitroaniline N-(3-Hydroxypropyl)-N-methylacetamide 3-Bromo-6-chloropyridazine 4-ethyl-3-nitrobenzoic acidRelated products of tetrahydrofuran
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