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| CAS No.: | 56908-88-4 |
|---|---|
| Name: | 3,5-Dibromobenzyl bromide |
| Article Data: | 18 |
| Molecular Structure: | |
|
|
|
| Formula: | C7H5Br3 |
| Molecular Weight: | 328.829 |
| Synonyms: | 3,5-Dibromo?benzyl?bromide;1,3-dibromo-5-(bromomethyl)benzene; |
| EINECS: | -0 |
| Density: | 2.173 g/cm3 |
| Melting Point: | 93-97 °C |
| Boiling Point: | 316.5 °C at 760 mmHg |
| Flash Point: | 142.2 °C |
| Appearance: | white to beige-brownish powder |
| Hazard Symbols: |
 F, C
|
| Risk Codes: | 11-34 |
| Safety: | 45-36/37/39-26 |
| PSA: | 0.00000 |
| LogP: | 4.10650 |
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Chemistry
IUPAC Name: 3,5-Dibromobenzyl bromide
The MF of 3,5-Dibromobenzyl bromide (56908-88-4) is C7H5Br3.
The MW of 3,5-Dibromobenzyl bromide (56908-88-4) is 328.83.
Synonyms of 3,5-Dibromobenzyl bromide (56908-88-4): Benzene, 1,3-dibromo-5-(bromomethyl)- ; 1,3-Dibromo-5-(bromomethyl)benzene ; 3,5-Dibromobenzyl bromide
Form: white to beige-brownish powder
Index of Refraction: 1.636
Density: 2.173 g/ml
Flash Point: 142.2 °C
Boiling Point: 316.5 °C
Melting Point: 93-95 °C
Storage temp: Flammables area
BRN: 3237827
Production
The condensation of morpholine (I) with 3,4-difluoronitrobenzene (II) by means of diisopropylethylamine in refluxing acetonitrile gives 3-fluoro-4-(4-morpholinyl)nitrobenzene (III), which is reduced with ammonium formate over Pd/C in THF/methanol to the corresponding aniline (IV). The reaction of (IV) with benzyloxycarbonyl chloride and NaHCO3 in acetone/water yields the carbamate ester (V), which is cyclized with 2(R),3-epoxypropyl butyrate (VI) by means of butyllithium in THF affording 5(R)-(hydroxymethyl)-3-[3-fluoro-4-(4-morpholinyl)phenyl]oxazolidin-2-one (VII). The reaction of (VII) with methanesulfonyl chloride and triethylamine in dichloromethane gives the mesylate (VIII), which by reaction with NaN3 in hot DMF is converted into the azide (IX). The reduction of (IX) with H2 over Pd/C in ethyl acetate affords the corresponding amine (X), which is finally acetylated with acetic anhydride and pyridine.
Safety Profile
Safety information of 3,5-Dibromobenzyl bromide (56908-88-4):
Hazard Codes .gif){kind=small}
C,.gif)
F
Risk Statements
34 Causes burns
11 Highly Flammable
Safety Statements
45 In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
36/37/39 Wear suitable protective clothing, gloves and eye/face protection
26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
RIDADR 1759
HazardClass 8
PackingGroup III