| Identification | More | [Name]
2,4,6-TRIBROMO-3,5-DIFLUOROPYRIDINE | [CAS]
30841-93-1 | [Synonyms]
2,4,6-Tribromodifluoro-pyridine
3,5-DIFLUORO-2,4,6-TRIBROMOPYRIDINE
2,4,6-TRIBROMO-3,5-DIFLUOROPYRIDINE
Pyridine, 2,4,6-tribromo-3,5-difluoro-
2,4,6-TRIBROMO-3,5-DIFLUOROPYRIDINE 97% | [Molecular Formula]
C5Br3F2N | [MDL Number]
MFCD03093767 | [Molecular Weight]
351.77 | [MOL File]
30841-93-1.mol |
| Questions And Answer | Back Directory | [Synthesis]
Combination of HBr and AlBr3 would be expected to give a super-acid
(H+ AIBq-) and we might anticipate that this would provide a very powerful brominating
agent. Indeed it has been shown that tetrafluoropyrazine (which is less basic than
pentafluoropyridine) gives tetrabromopyrazine on treatment with H+ AlBr4-, therefore,
we expected that H+ AIBq- would react well with (3). This proved to be the case and
reaction of pentafluoropyridine with H+ AIBq- gave 2,4,6-tribromo-3,5-difluoropyridine
as a single product in high yield.
|
| Safety Data | Back Directory | [Symbol(GHS) ]
GHS06 | [Signal word ]
Danger | [Hazard statements ]
H301+H311-H315-H319-H335 | [Precautionary statements ]
P261-P280-P312 | [Hazard Codes ]
Xi | [Risk Statements ]
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection . | [Hazard Note ]
Irritant |
|
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