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CAS No. : | 17715-69-4 | MDL No. : | MFCD00009844 |
Formula : | C8H9BrO2 | Boiling Point : | - |
Linear Structure Formula : | C6H3Br(OCH3)2 | InChI Key : | NIUZVSQOXJIHBL-UHFFFAOYSA-N |
M.W : | 217.06 | Pubchem ID : | 87266 |
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 |
---|---|---|
74.9% | 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:A 250 mL three-necked flask was charged with 2.66 g (0.01 mol) of 1,1-bis (4-aminophenyl) cyclohexane, 9.75 g(0.045 mol) of 2,4-dimethoxybromobenzene, 5.60 g (0.05 mol) of potassium t-butoxide and 53.2 g of toluene. Nitrogen protection added0.366 g (4.0 × 10 -4 mol) of Pd 2 (dba) 3,0.232 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,The reaction solution was filtered,20g toluene leaching cake,The filtrate through a silica gel column,Decompression solvent was reddish brown viscous liquid.The above crude product was treated with THF,Toluene (mass ratio of 3: 3) recrystallization,6.1g white solid was obtained,Yield: 74.9%. |