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CAS No. : | 150529-73-0 | MDL No. : | MFCD06858764 |
Formula : | C9H9BrO2 | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | ULSSGHADTSRELG-UHFFFAOYSA-N |
M.W : | 229.07 | Pubchem ID : | 11746402 |
Synonyms : |
|
Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P280-P305+P351+P338 | UN#: | |
Hazard Statements: | H302-H315-H319-H332-H335 | Packing Group: | |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
82.3% | Stage #1: With lithium diisopropyl amide In tetrahydrofuran; n-heptane; ethylbenzene at -78℃; for 0.5 h; Inert atmosphere Stage #2: at 20℃; for 3 h; Inert atmosphere |
To a dry 100 mL three-necked flask was added methyl 3-bromophenylacetate (4.58 g, 20 mmol, 1.0 eq) under N2.Add anhydrous tetrahydrofuran (30 mL),A 2.0 M solution of lithium diisopropylamide in THF / heptane / ethylbenzene (10.5 mL, 21 mmol, 1.05 eq) was slowly added dropwise at -78 °C.After the completion of the dropwise addition, the mixture was stirred for 30 minutes, and then methyl iodide (2.84 g, 20 mmol,1.0eq). Stirring was continued at room temperature for a further 3 hours.60 mL of water was added to the reaction flask, followed by extraction with 50 mL of dichloromethane, and the mixture was separated.The aqueous phase was extracted twice more with 30 mL of dichloromethane. Combine the organic phase,Wash twice with saturated saline solution,Drying with anhydrous sodium sulfate, concentration, and the residue was separated by column chromatography.Methyl 2-(3-bromophenyl)propanoate 3.95 g was obtained in a yield of 82.3percent. |
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