카르본

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

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• 유해·위험 문구

  H317：알레르기성 피부 반응을 일으킬 수 있음

• 예방조치문구

  P261：분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.

  P272：작업장 밖으로 오염된 의복을 반출하지 마시오.

  P280：보호장갑/보호의/보안경/안면보호구를 착용하시오.

  P302+P352：피부에 묻으면 다량의 물로 씻으시오.

  P321：(…) 처치를 하시오.

  P333+P313：피부자극성 또는 홍반이 나타나면 의학적인 조치·조언를 구하시오.

  P363：다시 사용전 오염된 의류는 세척하시오.

  P501：...에 내용물 / 용기를 폐기 하시오.

카르본 화학적 특성, 용도, 생산

• 화학적 성질

  Carvone occurs as (S)-(+)- carvone ([α]18 D +64.3°,), (R)-(?)-carvone ([α]20 D ?62.5°), or racemic carvone. The optical isomers differ considerably in their sensory properties. They occur in high percentages in a number of essential oils. (+)-Carvone is the main component of caraway oil (about 60%) and dill oil; (?)- carvone occurs in spearmint oil at a concentration of 70–80%.
  Both (+)- and (?)-carvone are used to flavor a number of foods and beverages. (?)-Carvone is produced in much larger quantities and is mainly used in oral hygiene products.

• 물리적 성질

  The carvones are colorless to slightly yellow liquids.(+)-Carvone has a herbaceous odor reminiscent of caraway and dill seeds, whereas (?)-carvone has a herbaceous odor reminiscent of spearmint. Depending on the reaction conditions, hydrogenation of carvone yields either carveol or dihydrocarvone, which are also used as flavor compounds. When treated with strong acids, carvone isomerizes to carvacrol.

• 출처

  The optically active and inactive forms have been reported among the constituents of about 70 essential oils. The dextro form is present in carvi, Antheum graveolens, Antheum sowa, Lippia carviodora, Mentha arvensis, etc. The levo form is present in Metha vifidis var. crispa, Mentha longifolia from South Africa, Eucalyptus globules and several mint species. The racemic form is present in ginger grass, Litsea gutalemaleusis, lavender and Artemisia ferganensis. Reported found in citrus oil and juice (lemon, lime, orange), celery seed, anise, clove, coriander seed, calamus, caraway herb and dill seed.

• 용도

  Carvone is useful for the treatment of various metabolic disorders and GI related disorders.

• 제조 방법

  In the past, (+)- and (?)-carvones were isolated by fractional distillation of caraway oil and spearmint oil, respectively. However, these carvones are now prepared synthetically, the preferred starting materials being (+)- and (?)- limonenes, which are converted into the corresponding optically active carvones. Since optical rotation is reversed in the process, (+)-limonene is the startingmaterial for (?)-carvone.
  Thepreferred industrialmethod of carvone synthesis utilizes the selective addition of nitrosyl chloride to the endocyclic double bond of limonene. If a lower aliphatic alcohol is used as solvent, limonene nitrosochloride is obtained in high yield. It is converted into carvone oxime by elimination of hydrogen chloride in the presence of a weak base. Acid hydrolysis in the presence of a hydroxylamine acceptor, such as acetone, yields carvone.
  An alternative process for the production of (?)-carvone has recently been commercialized. Starting from (+)-limonene 1,2-epoxide, a regioselective rearrangement of the epoxide leads to (?)-carveol (trans- :[2102-58-1]; cis- :[2102-59-2]). Thereaction is effected by the use of a catalyst consisting of a combination of metal salts and phenolic compounds.
  (?)-Carveol is subsequently oxidized to (?)-carvone by anOppenauer oxidation or by dehydrogenation in the presence of special catalysts.The reaction may also be performed as a one-pot reaction.

• 정의

  A ketone derived from the terpene dipentene. It is optically active, occurring naturally in both d- and l-forms.

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