4,5-Dibromo-3-methylthiophene-2-carboxylic acid
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- CAS-Nr.
- 854626-32-7
- Englisch Name:
- 4,5-Dibromo-3-methylthiophene-2-carboxylic acid
- Synonyma:
- 4,5-Dibromo-3-methylthiophene-2-carboxylic acid;4,5-dibromo-3-methyl-2-Thiophenecarboxylic acid;2-Thiophenecarboxylic acid, 4,5-dibromo-3-methyl-
- CBNumber:
- CB23064858
- Summenformel:
- C6H4Br2O2S
- Molgewicht:
- 299.97
- MOL-Datei:
- 854626-32-7.mol
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4,5-Dibromo-3-methylthiophene-2-carboxylic acid Eigenschaften
- Schmelzpunkt:
- 225-226 °C
- Siedepunkt:
- 369.8±42.0 °C(Predicted)
- Dichte
- 2.141±0.06 g/cm3(Predicted)
- storage temp.
- under inert gas (nitrogen or Argon) at 2–8 °C
- pka
- 3.48±0.10(Predicted)
Sicherheit
- Risiko- und Sicherheitserkl?rung
- Gefahreninformationscode (GHS)
4,5-Dibromo-3-methylthiophene-2-carboxylic acid Chemische Eigenschaften,Einsatz,Produktion Methoden
synthetische
4,5-Dibromo-3-methyl-2-thiophenecarboxylic acid synthesis: 4,5-dibromo-3-methyl-2-thiophenecarbonitrile (26.2 g, 92.2 mmol), EtOH (175 mL), water (175 mL), and NaOH (18.6 g, 466 mmol) were stirred together at 80°C for 1 h. The solvent was removed, the solids were collected by filtration, dissolved in water, and washed with CH2Cl2. The water layer was acidified with 37% HCl, the white solid was collected by filtration and dried under vacuum at 60°C to give 25.9 g (94% wt.) of 4,5-dibromo-3-methyl-2-thiophenecarboxylic acid: m.p. 225-226°C; 1H NMR (CDCl3) 2.5 (s).
4,5-Dibromo-3-methylthiophene-2-carboxylic acid Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
4,5-Dibromo-3-methylthiophene-2-carboxylic acid Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.
Global( 25)Lieferanten
- 4,5-dibromo-3-methyl-2-Thiophenecarboxylic acid
- 4,5-Dibromo-3-methylthiophene-2-carboxylic acid
- 2-Thiophenecarboxylic acid, 4,5-dibromo-3-methyl-
- 854626-32-7
