Borneol

borneol

[′bȯr·nē‚ȯl] (organic chemistry) C₁₀H₁₇OH White lumps with camphor odor; insoluble in water, soluble in alcohol; melting point 203°C; used in perfumes, medicine, and chemical synthesis.

Borneol

bornyl alcohol, a secondary alcohol of the bicyclic terpene group. Borneol has an endo configuration; its isomer, called isoborneol, has an exo configuration. [The (CH₃)₂C group is located outside the plane of the ring.]

Borneol and isoborneol contain an asymmetric carbon atom (denoted by an asterisk), and therefore each of them exists in two optically active forms and one inactive racemic form (−, +, and ±). Borneo camphor, (+)-borneol, is contained in the secretions of the tree Dryobanalops camphora, which grows on the islands of Borneo and Sumatra, as well as in rosemary, lavender, and camphor oils. The acetate form, ( − )-borneol, is contained in the coniferous needle of the Siberian pine. Both (+)-borneol and (−)-borneol have a melting point T_m = 208.5° C, boiling point T_b = 212° C, and angle of rotation of the plane of polarization [α]_D²⁰ = ±37.9°; and both sublimate. The racemate (±)-borneol melts at 210.3° C. Both (−)-borneol and (±)-borneol are components of valerian oil.

Borneol is converted into camphor upon oxidation and catalytic dehydrogenation; the dehydration of borneol leads to camphene. The primary method of obtaining borneol is the hydration of pinene, which is contained in turpentine. Borneol is used in the production of camphor.

Isoborneol (T_m= 214° C) is not found in nature; it is obtained from camphene.

单词	borneol
释义	borneol borneol (ˈbɔːnɪˌɒl) n (Elements & Compounds) a white solid terpene alcohol extracted from the Malaysian tree Dryobalanops aromatica, used in perfume and in the manufacture of organic esters. Formula: C10H17OH. Also called: bornyl alcohol [C19: from Borne(o) + -ol¹] bor•ne•ol (ˈbɔr niˌɔl, -ˌɒl) n. a solid terpene alcohol, C₁₀H₁₈O, used in synthesizing camphor and in perfumes. [1875–80] Borneol borneol [′bȯr·nē‚ȯl] (organic chemistry) C₁₀H₁₇OH White lumps with camphor odor; insoluble in water, soluble in alcohol; melting point 203°C; used in perfumes, medicine, and chemical synthesis. Borneol bornyl alcohol, a secondary alcohol of the bicyclic terpene group. Borneol has an endo configuration; its isomer, called isoborneol, has an exo configuration. [The (CH₃)₂C group is located outside the plane of the ring.] Borneol and isoborneol contain an asymmetric carbon atom (denoted by an asterisk), and therefore each of them exists in two optically active forms and one inactive racemic form (−, +, and ±). Borneo camphor, (+)-borneol, is contained in the secretions of the tree Dryobanalops camphora, which grows on the islands of Borneo and Sumatra, as well as in rosemary, lavender, and camphor oils. The acetate form, ( − )-borneol, is contained in the coniferous needle of the Siberian pine. Both (+)-borneol and (−)-borneol have a melting point T_m = 208.5° C, boiling point T_b = 212° C, and angle of rotation of the plane of polarization [α]_D²⁰ = ±37.9°; and both sublimate. The racemate (±)-borneol melts at 210.3° C. Both (−)-borneol and (±)-borneol are components of valerian oil. Borneol is converted into camphor upon oxidation and catalytic dehydrogenation; the dehydration of borneol leads to camphene. The primary method of obtaining borneol is the hydration of pinene, which is contained in turpentine. Borneol is used in the production of camphor. Isoborneol (T_m= 214° C) is not found in nature; it is obtained from camphene. borneol borneol A bicyclic organic compound obtained by reduction from the camphor tree (Dryobalanops camphora) of Borneo and Sumatra, which irritates mucocutaneous surfaces. Borneol is used in chemical reactions, is a natural insect repellant and used in traditional Chinese medicine as moxa.
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borneol

borneol

bor•ne•ol

Borneol

borneol

Borneol

borneol

borneol