1-Bromo-3-fluoro-5-methylbenzene

Bezeichnung:1-Bromo-3-fluoro-5-methylbenzene

CAS-Nr202865-83-6

Englisch Name:1-Bromo-3-fluoro-5-methylbenzene

CBNumberCB5684465

SummenformelC7H6BrF

Molgewicht189.02

MOL-Datei202865-83-6.mol

1-Bromo-3-fluoro-5-methylbenzene physikalisch-chemischer Eigenschaften

Siedepunkt	183.4±20.0 °C(Predicted)
Dichte	1.498±0.06 g/cm3(Predicted)
storage temp.	2-8°C
Aggregatzustand	Liquid
Farbe	Colorless
InChI	InChI=1S/C7H6BrF/c1-5-2-6(8)4-7(9)3-5/h2-4H,1H3
InChIKey	CTNFNUQREIIROB-UHFFFAOYSA-N
SMILES	C1(Br)=CC(C)=CC(F)=C1
CAS Datenbank	202865-83-6(CAS DataBase Reference)

Sicherheit

Kennzeichnung gefährlicher	Xi,Xn
R-Sätze:	10-36/37/38-36-22
S-Sätze:	16-26-36
RIDADR	1993
HazardClass	IRRITANT
HS Code	2903998090

Gefahreninformationscode (GHS)

1-Bromo-3-fluoro-5-methylbenzene Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R10:Entzündlich.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S16:Von Zündquellen fernhalten - Nicht rauchen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Verwenden
3-Bromo-5-fluorotoluene is an important halotoluene compound used as a structural component of many organic heterocyclic compounds. It has reactive groups, bromine and fluorine atoms, which can be used in substitution reactions.
Synthese
2-Bromo-6-fluoro-4-methylaniline (11.2 g, 55 mmol), diluted hydrochloric acid (28.5 mL, 6 M) and acetonitrile (300 mL) were added to a 500 mL single-neck flask, then to the mixture in flask was added dropwise slowly a solution of sodium nitrite (5.69 g, 82.4 mmol) in water (40 mL) at 0 °C. After the addition, the reaction mixture was stirred at 0 °C for 1 h; then a solution of potassium iodide (18.3 g, 110 mmol) was added to the flask in water (30 mL). After the addition, the mixture was stirred at 0 °C for 0.5 h, then stirred at rt overnight. The reaction mixture was added saturated aqueous sodium sulfite (300 mL), and the resulting mixture was concentrated in vacuo to remove acetonitrile. The residue was extracted with ethyl acetate (100 mL x 2), combining the organic layers. The combined organic layers were washed with saturated brine (100 mL), dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated in vacuo. The residue was purified by silica-gel column chromatography (ethyl acetate/petroleum ether (v/v) = 1/100) to give 1-Bromo-3-fluoro-5-methylbenzene as a white solid (13.2 g, 76%).

1-Bromo-3-fluoro-5-methylbenzene Upstream-Materialien And Downstream Produkte

1-Bromo-3-fluoro-5-methylbenzene Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

202865-83-6, 1-Bromo-3-fluoro-5-methylbenzene Verwandte Suche:

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