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CAS No. : | 40360-47-2 | MDL No. : | MFCD00233991 |
Formula : | C5H2Br2ClN | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | PYSICVOJSJMFKP-UHFFFAOYSA-N |
M.W : | 271.34 | Pubchem ID : | 817092 |
Synonyms : |
|
Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | |
Hazard Statements: | H302-H315-H319-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 |
---|---|---|
44.2% | Amine-L: l-(3,5-dibromopyridin- -yl)piperazineA solution of tert-butyl piperazine-l -carboxylate (279 mg, 1.500 mmol), 3,5-dibromo-2- chloropyridine (407 mg, 1.5 mmol), and DIEA (262 mu^, 1.500 mmol) in NMP was heated at 160- 165 C for 1 h. LCMS showed the desired product is the major peak. After cold down, the solid was treated with 40% TFA in DCM for 2h. Purification in silicon gel column with 5% MeOH/DCM gave l-(3,5-dibromopyridin-2-yl)piperazine (213mg, 0.664 mmol, 44.2 % yield). 500MHz) delta 8.3 1 (1H, s), 8.01 (1H, s), 3.58 (4H,m), 3.38(4H,m). |
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