Benzophenone

Japanese: ベンゾフェノン
Benzophenone

Diphenyl ketone. C 13 H 10 O (182.22). C 6 H 5 COC 6 H 5 . It is also called benzoylbenzene. It is synthesized by Friedel-Crafts condensation (Friedel-Crafts reaction) of benzene and benzoyl chloride, or two benzene molecules and one phosgene molecule. There are two forms, stable and unstable. The stable form has a melting point of 49 °C and boiling points of 306 °C and 158 °C (1.33 kPa). 1.087. 1.597. The unstable form has a melting point of 26 °C. Both are crystalline. Soluble in ethanol, ether, and chloroform, insoluble in water. Diphenylmethane or benzhydrol is obtained by reduction. It is used as a fixative for fragrances. It is also used as a raw material for the synthesis of medicines, pesticides, etc. LD 50 2895 mg/kg (mouse, oral). [CAS 119-61-9]

Source: Morikita Publishing "Chemical Dictionary (2nd Edition)" Information about the Chemical Dictionary 2nd Edition

Japanese:

diphenyl ketone.C13H10O(182.22).C6H5COC6H5.ベンゾイルベンゼンともいう.ベンゼンと塩化ベンゾイル,あるいはベンゼン2分子とホスゲン1分子とのフリーデル-クラフツ縮合(フリーデル-クラフツ反応)によって合成される.安定形および不安定形の2形があり,安定形は融点49 ℃,沸点306 ℃,158 ℃(1.33 kPa).1.087.1.597.不安定形は融点26 ℃.ともに結晶.エタノール,エーテル,クロロホルムに可溶,水に不溶.還元すればジフェニルメタンあるいはベンズヒドロールが得られる.香料の固定剤として用いられる.また医薬品,農薬などの合成原料にも用いられる.LD50 2895 mg/kg(マウス,経口).[CAS 119-61-9]

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