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CAS No. : | 608-30-0 | MDL No. : | MFCD00007638 |
Formula : | C6H5Br2N | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | XIRRDAWDNHRRLB-UHFFFAOYSA-N |
M.W : | 250.92 | Pubchem ID : | 69098 |
Synonyms : |
|
Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P280-P305+P351+P338 | UN#: | |
Hazard Statements: | H315-H317-H319-H335 | Packing Group: | |
GHS Pictogram: |
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* 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 |
---|---|---|
29% | Stage #1: at 0 - 10℃; for 1 h; Stage #2: at 0 - 220℃; for 3 h; |
Step 1: 1,3-dibromo-2-fluorobenzene To a mixture of 2,6-dibromoaniline (5.0 g, 20 mmol) and HCl (12 N, 10 mL) was added NaNO2 (2.1 g, 30 mmol) at 0° C. The reaction mixture was stirred at 0-10° C. for 1 h, and then NH4BF4 solution (4.2 g, 40 mmol) was added dropwise. The reaction mixture was stirred at 0-10° C. for 1 h. The precipitate was filtered and dried. The residue obtained was heated to 220° C. for 2 h, cooled to rt and dissolved with EA (150 mL), washed with NaOH (2 N, 200 mL). The organic layer was dried over Na2SO4, filtered and concentrated under reduced pressure to give 1,3-dibromo-2-fluorobenzene (1.45 g, yield 29percent). |
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