Methyl-2-naphthylether

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Warnung

• Gefahrenhinweise

  H319：Verursacht schwere Augenreizung.

  H411：Giftig für Wasserorganismen, mit langfristiger Wirkung.

• Sicherheit

  P264：Nach Gebrauch gründlich waschen.

  P264：Nach Gebrauch gründlich waschen.

  P273：Freisetzung in die Umwelt vermeiden.

  P280：Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.

  P305+P351+P338：BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.

  P337+P313：Bei anhaltender Augenreizung: Ärztlichen Rat einholen/ärztliche Hilfe hinzuziehen.

  P391：Verschüttete Mengen aufnehmen.

2-Methoxynaphthalene Chemische Eigenschaften,Einsatz,Produktion Methoden

• S-Sätze Betriebsanweisung:

  S22:Staub nicht einatmen.
  S24/25:Berührung mit den Augen und der Haut vermeiden.

• Beschreibung

  β-Naphthyl methyl ether has an intensely sweet, floral odor suggestive of orange blossoms. It is free from naphthol by-odor. It has a sweet, strawberry taste. This may be prepared from potassium β-naphthol and methyl chloride at 300°C; by methylation of β-naphthol with dimethyl sulfate or by direct esterification with methyl alcohol.

• Chemische Eigenschaften

  β-Naphthyl methyl ether has an intensely sweet, floral odor suggestive of orange blossoms; free from naphthol by-odor. It has a sweet, strawberry taste

• Chemische Eigenschaften

  Methyl 2-Naphthyl Ether forms white crystals (mp 73–74°C) with an intense orange blossom odor.

• Chemische Eigenschaften

  white powder

• Verwenden

  2-methoxynaphthalene acylation was used as a model reaction to study the catalytic benefits of delamination. It was also used to study the alkali-metal-mediated manganation (AMMMn) reactions.

• Verwenden

  2-methoxynaphthalene acylation is used as a model reaction to study the catalytic benefits of delamination. It was also used to study the alkali-metal-mediated manganation (AMMMn) reactions.

• Verwenden

  2-Methoxynaphthalene is an Impurity of the non-steroidal anti-inflammatory Naproxen (N377525).

• synthetische

  From postassium β-naphthol and methyl chloride at 300°C; by methylation of β-naphthlol with dimethyl sulfate or by direct esterification with methyl alcohol

• Definition

  ChEBI: 2-Methoxynaphthalene is a member of naphthalenes.

• Synthesis Reference(s)

  Tetrahedron, 48, p. 6439, 1992 DOI: 10.1016/S0040-4020(01)88233-8
  Tetrahedron Letters, 22, p. 3463, 1981 DOI: 10.1016/S0040-4039(01)81932-8

• Flammability and Explosibility

  Not classified

• Synthese

  Preparation of 2-Methoxynaphthalene from 2-naphthol.
  Principle: Phenols can be methylated to give methyl ethers. Methylation can be done either by using diazomethane or dimethyl sulphate in alkaline medium.
  Reaction:
  
  Procedure: Take 0.5 g 2-naphthol and 0.2 g NaOH in 5 ml distilled water in a beaker (25 ml). Heat on a wire gauze to obtain a clear solution. Cool the solution (10-15°C) and then add 0.35 ml dimethyl sulphate drop wise. After the addition is over, warm the mixture for one hour at 70-80°C and then cool. Filter the product and wash it with 10% sodium hydroxide solution and then with water. Dry the product, record the practical yield and re-crystallize it.
  Re-crystallization: Dissolve the crude product in minimum amount of ethyl alcohol in a beaker by heating on a water bath. Filter the hot solution and cool the filtrate. Filter the white crystals of the product. Dry and record the melting point and TLC (using toluene as solvent).

• läuterung methode

  Fractionally distil the ether under vacuum. Crystallise it from absolute EtOH, aqueous EtOH, *C6H6, pet ether or n-heptane, and dry it under vacuum in an Abderhalden pistol or distil it in vacuo. The picrate has m 118o (from EtOH or CHCl3). [Kikuchi et al. J Phys Chem 91 574 1987, Beilstein 6 III 2969, 6 IV 4257.]

2-Methoxynaphthalene Upstream-Materialien And Downstream Produkte

Methyl-2-naphthylether Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global(529)Suppliers

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