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CAS No. : | 25245-34-5 | MDL No. : | MFCD00008355 |
Formula : | C8H9BrO2 | Boiling Point : | - |
Linear Structure Formula : | (CH3O)2C6H3Br | InChI Key : | DWCGNRKFLRLWCJ-UHFFFAOYSA-N |
M.W : | 217.06 | Pubchem ID : | 91353 |
Synonyms : |
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Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319-H335 | Packing Group: | N/A |
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 |
---|---|---|
73.5% | With tris-(dibenzylideneacetone)dipalladium(0); potassium tert-butylate; tri tert-butylphosphoniumtetrafluoroborate; In toluene; at 100 - 108℃; for 8h;Inert atmosphere; | The reaction route is as follows:250mL three-necked flask was added 2.65g (0.01mol)1,1-bis (4-aminophenyl) cyclohexane,9.72 g (0.045 mol) of 2,5-dimethoxybromobenzene,5.58 g (0.05 mol) potassium tert-butoxide,53g toluene.Under nitrogen atmosphere, 0.364 g (4.0 10-4 mol) of Pd2 (dba) 3,0.231 g (8.0 × 10 -4 mol) (t-Bu) 3PH · BF 4,The temperature was raised to 100 C to 108 C and refluxed for 8 hours.Completed the reaction,Add 50g water twice,Dried over anhydrous sodium sulfate,Decompression solvent was brown viscous liquid.The above crude product was treated with THF,Ethyl acetate (mass ratio of 5: 5) recrystallization,5.9g white powder was obtained,Yield: 73.5%. |