1,7,7-trimethylbicyclo[2.2.1]heptan-2-ol. C 10 H 18 O (154.25). Also called bornyl alcohol. Bicyclic monoterpene alcohol. Dextrorotatory (1 R, 2 S )-borneol is obtained from the Dryobalanops camphora tree, which grows in Borneo and Sumatra, and levorotatory (1 S, 2 R )-borneol, the antipode of borneol, is obtained from the Blumea balsamifera , which grows in Taiwan and the Malay Peninsula. Oxidation of (1 R, 2 S )-borneol produces d -camphor. Reduction of d -camphor with sodium and ethanol produces (1 R, 2 S )-borneol and its epimer with respect to the hydroxyl group, (1 R, 2 R )-isoborneol. (1R , 2S )-Borneol has a melting point of 208°C and a boiling point of 212°C. +37.7° (ethanol). It is easily soluble in ethanol, soluble in organic solvents, and insoluble in water. (1R , 2R )-Isoborneol has a melting point of 212°C. -32.3° (methanol). It is used in various cosmetics, fragrances, oral preparations, pharmaceutical fragrances, and disinfectants. [CAS 464-43-7: (1R , 2S )-Borneol] Source: Morikita Publishing "Chemical Dictionary (2nd Edition)" Information about the Chemical Dictionary 2nd Edition |
1,7,7-trimethylbicyclo[2.2.1]heptan-2-ol.C10H18O(154.25).ボルニルアルコールともいう.二環式モノテルペンアルコール.ボルネオやスマトラに産生する竜脳樹Dryobalanops camphoraから右旋性の(1R,2S)-ボルネオール(竜脳)が得られ,台湾,マレー半島などに産生するタカサゴギクBlumea balsamiferaからは,竜脳の対掌体である左旋性の(1S,2R)-ボルネオール(白手竜脳)が得られる.(1R,2S)-ボルネオールを酸化するとd-カンファーを生じる.d-カンファーをナトリウムとエタノールで還元すると,(1R,2S)-ボルネオールとヒドロキシ基に関するエピマー,(1R,2R)-イソボルネオールを生じる.(1R,2S)-ボルネオールは融点208 ℃,沸点212 ℃.+37.7°(エタノール).エタノールに易溶,有機溶媒に可溶,水に不溶.(1R,2R)-イソボルネオールは融点212 ℃.-32.3°(メタノール).各種化粧品,香粧品,口腔剤,医薬品の付香料,殺菌消毒剤に用いられる.[CAS 464-43-7:(1R,2S)-ボルネオール] 出典 森北出版「化学辞典(第2版)」化学辞典 第2版について 情報 |
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