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CAS No. : | 190273-89-3 | MDL No. : | MFCD04114089 |
Formula : | C8H6BrN3 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | IJXKEDDKGGBSBX-UHFFFAOYSA-N |
M.W : | 224.06 | Pubchem ID : | 2762768 |
Synonyms : |
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P280-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H332-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 |
---|---|---|
61% | With sodium carbonate;tetrakis(triphenylphosphine) palladium(0); In ethanol; water; N,N-dimethyl-formamide; at 100℃; for 2h;Inert atmosphere; | Synthesis of intermediate 2 6-(2-Chloro-5-methoxy~phenyi)-quinazolin-2- ylamine; To a solution of 2-chloro-5-methoxy boronic acid (14.42g, 77.34 mmol, 1.5eq), 6-Bromo-quinazolin~2~ylamine ( 11.55g, 51.56 mmol, leq) and Na2CO3 (21.86g, 206.23 mmol, 4eq) in a mixture of 120ml DMF/3ml EtOH/30m. H2O, was added 2.311g (5.16 mmol, 0.1 eq) of tetrakis(tpiphenylphospine) palladium. The reaction was refluxed(1000C) for 2 hours under argon. It was then cooled off to room temperature to extract the product by DCM and brine. The product is then washed with water and ether, then dried to give 9.010 g (32 mmol, 61percent) of a pale yellow powder. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
61% | With sodium carbonate;tetrakis(triphenylphosphine) palladium(0); In ethanol; water; N,N-dimethyl-formamide; at 100℃; for 2h;Inert atmosphere; | Method 2:Synthesis of intermediate 5: 6-(2-Chloro-5-methoxy-phenyl)-quinazolin-2- ylamineTo a solution of 2-chloro-5-methoxy boronic acid (14.42g, 77.34 mmol, 1 .5eq), 6-Bromo-quinazolin-2-ylamine (1 1 .55g, 51 .56 mmol, 1 eq) and Na2C03 (21 .86g, 206.23 mmol, 4eq) in a mixture of 120ml DMF/30ml EtOH/30ml H20, was added 2.31 1 g (5.16 mmol, 0.1 eq) of tetrakis(triphenylphospine) palladium. The reaction was refluxed (Iota OmicronOmicron ') for 2 hours under argon. It was then cooled off to room temperature to extract the product by DCM and brine. The product is then washed with water and ether, then dried to give 9.010 g (32 mmol, 61 percent) of a pale yellow powder. |
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