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2-Bromofluorene high purity 2-Bromofluorene factory supply 2-Bromofluorene
CAS: | 1133-80-8 |
MF: | C13H9Br |
MW: | 245.11 |
EINECS: | 214-480-6 |
Product Categories: | Fluorene Derivatives;Fluorenes, Flurenones;Electronic Chemicals;Fluorenes;Fluorenes & Fluorenones;Aryl;C13 to C37+;Halogenated Hydrocarbons;Fluorene Series;OLED materials,pharm chemical,electronic;alkyl bromide;Pyridines |
Mol File: | 1133-80-8.mol |
2-Bromofluorene Chemical Properties |
Melting point | 112-114 °C(lit.) |
Boiling point | 185 °C135 mm Hg(lit.) |
Fp | 185°C/135mm |
solubility | Soluble in chloroform and ethyl acetate. |
form | Slightly Crystalline Powder or Flakes |
color | White to slightly yellow |
BRN | 1946701 |
CAS DataBase Reference | 1133-80-8(CAS DataBase Reference) |
NIST Chemistry Reference | 9H-Fluorene, 2-bromo-(1133-80-8) |
Safety Information |
Hazard Codes | Xi |
Risk Statements | 36/37/38 |
Safety Statements | 26-37/39 |
WGK Germany | 3 |
HazardClass | IRRITANT |
MSDS Information |
Provider | Language |
---|---|
2-Bromofluorene | English |
ACROS | English |
SigmaAldrich | English |
ALFA | English |
2-Bromofluorene Usage And Synthesis |
Outline |
2-bromofluorene is often used as synthetic intermediate of the OLED material in industry, by the reaction of barbier-type ultrasonic radiation, 2-bromofluorene is also used to study the conversion of aryl bromides to aryl triethoxy silane. Lab Preparation Methods: propylene carbonate is used as solvent, N-bromosuccinimide (NBS) is used as brominated reagent to carry bromination reaction of fluorine, and this reaction can synthesize 2-bromofluorene and 2,7-dibromofluorene. By the investigation of reaction temperature, NBS amount, the adding methods, the optimal reaction conditions for the synthesis of 2-bromofluorene is confirmed. The optimal reaction conditions are: reaction temperature is 23℃, the molar ratio of NBS with fluorine is 1.1:1, NBS is added by stage addition. First fluorene and propylene carbonate is preheated to 60℃, so fluorine is all dissolved, and then it drops to the reaction temperature, NBS is added by stage addition. 2-bromofluorene and 2,7-dibromofluorene recrystallizes with ethanol and acetic acid respectively, the purity of target product of liquid chromatography can reach more than 99%. |
Uses |
(1) It can be used as pharmaceutical intermediate, it is also important intermediate in the synthesis of optoelectronic material. (2) By ultrasonic radiation of Barbier-type reaction, 2-bromofluorene is used for the study of aryl bromide (aryl bromides) converts to aryl triethoxysilane (aryltriethoxysilanes). It is also for the preparation of N-carbazole fluorene oligomers end-capped. It can be used as intermediates of OLED materials in industry. |
Chemical Properties | white to slightly yellow crystalline powder |
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