2'-アセトナフトン

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Warning

• 危険有害性情報

  H411：長期的影響により水生生物に毒性

• 注意書き

  P273：環境への放出を避けること。

  P391：漏出物を回収すること。

  P501：内容物/容器を．．．に廃棄すること。

2'-アセトナフトン 価格

MSDS Information

• Methyl 2-naphthyl ketone

2'-アセトナフトン 化学特性,用途語,生産方法

• 外観

  白色～ほとんど白色粉末～結晶

• 用途

  着色料

• 物理的性質

  Methyl β-napthyl ketone has a floral, neroli odor suggestive of orange blossom and a strawberry-like flavor.

• 化学的特性

  2-Acetonaphthone smells similar to orange blossomand is a colorless crystalline solid (mp 56 °C). It is usually prepared by Friedel–Crafts acetylation of naphthalene (with acetyl chloride, acetic anhydride, etc.) in the presence of aluminumchloride. In polar solvents (e.g., nitrobenzene), the percentage of the simultaneously formed -isomer is lower. Methyl 2-naphthyl ketone is used in eau de cologne, soap perfumes, and detergents. It is a good fixative.

• 使用

  2-Acetonaphthone is a flavoring agent that is a crystalline solid (white or nearly white) with orange blossom-like odor. It is soluble in most fixed oils, slightly soluble in mineral oil and propylene glycol, and insoluble in glycerin. It is obtained by chemical synthesis.

• 定義

  ChEBI: 2-acetylnaphthalene is a naphthyl ketone that is naphthalene substituted at position 2 by an acetyl group.

• 製造方法

  2-Acetonaphthone may be prepared by Friedel-Crafts reaction of naphthalene, acetyl chloride and AlCl3.

• 一般的な説明

  2-Acetonaphthone undergoes efficient photoreduction in the presence of tri-n-butylstannane as hydrogen donor. It is solubilized in air-saturated sodium dodecyl sulphate micelles in D₂O or H₂O by pulsed nitrogen laser photolysis for triplet sensitized production of singlet oxygen.

• 安全性プロファイル

  Moderately toxic by ingestion. A human skin irritant. Flammable liquid. When heated to decomposition it emits acrid smoke and fumes

• 純化方法

  Separate it from the 1-isomer by fractional crystallisation of the picrate in EtOH (see entry for the 1-isomer above) to m 82o. Decomposition of the picrate with dilute NaOH and extraction with Et2O, then evaporation, give purer 2-acetylnaphthalene. If this residue solidifies, it can be recrystallised from pet ether, EtOH or acetic acid; otherwise it should be distilled in a vacuum and the solid distillate is recrystallised [Gorman & Rodgers J Am Chem Soc 108 5074 1986, Levanon et al. J Phys Chem 91 14 1987]. Purity should be checked by high field NMR spectroscopy. Its oxime has m 145o(dec), and the semicarbazone has m 235o. [Stobbe & Lenzer Justus Liebigs Ann Chem 380 95 1911, Raffauf J Am Chem Soc 72 753 1950, Hunsberger J Am Chem Soc 72 5626 1950, Immediata & Day J Org Chem 5 512 1940, Beilstein 7 IV 1294.]

2'-アセトナフトン 上流と下流の製品情報

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2'-アセトナフトン スペクトルデータ(¹HNMR、¹³CNMR、IR1、IR2、MS、Raman)

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