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ChemicalBook--->CAS DataBase List--->147808-42-2

147808-42-2

147808-42-2 Structure

147808-42-2 Structure
IdentificationBack Directory
[Name]

5-Bromo-1,3-difluoro-2-nitrobenzene
[CAS]

147808-42-2
[Synonyms]

4-BroMo-2,6-difluoronitrobenzene
5-bromo-1,3-difluoro-2-nitrobenzene
1-Bromo-3,5-difluoro-4-nitrobenzene
3,5-Difluoro-4-nitrobromobenzene 98%
Benzene, 5-bromo-1,3-difluoro-2-nitro-
5-Bromo-1,3-difluoro-2-nitrobenzene, 4-Bromo-2,6-difluoronitrobenzene
[Molecular Formula]

C6H2BrF2NO2
[MDL Number]

MFCD12025434
[MOL File]

147808-42-2.mol
[Molecular Weight]

237.99
Chemical PropertiesBack Directory
[Boiling point ]

266 °C
[density ]

1.890
[Fp ]

114 °C
[storage temp. ]

Sealed in dry,2-8°C
[form ]

powder
[color ]

Faint yellow to orange
Safety DataBack Directory
[Symbol(GHS) ]


GHS07
[Signal word ]

Warning
[Hazard statements ]

H302-H315-H319-H335
[Precautionary statements ]

P271-P260-P280
[HS Code ]

2904990090
Hazard InformationBack Directory
[Synthesis]

Sodium perborate tetrahydrate (18.5 g, 0.12 mol, 5.0 eq) was suspended in glacial acetic acid (125 mL) and heated to 65 °C. 4-Bromo-2,6-difluoroanilline(5.0 g, 24.0 mmol, 1.0 eq) dissolved in glacial acetic acid (50 mL) was added slowly through a funnel over 4 h. After the addition, the reaction mixture was heated for 3 h additional hours before a second portion of NaBO3·4H2O (6.0 g, 30.0 mmol) was added. Then, the mixture was stirred for 14 h, and a third portion of oxidating agent (9.0 g, 45.0 mmol) was added. 9 h after the third addition full consumption of the starting material was indicated by TLC. After cooling the mixture to room temperature, the formed solid was removed by filtration. The filtrate was poured into ice-cold water (300 mL). The precipitated solid was filtered off and dried to give the product 5-Bromo-1,3-difluoro-2-nitrobenzene as a yellow solid (3.40 g 60percent).
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