Camphene


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Related to Camphene: camphor

camphene

[′kam‚fēn]
(organic chemistry)
C10H16 A bicyclic terpene used as raw material in the synthesis of insecticides such as toxaphene and camphor.

Camphene

 

(3, 3-dimethyl-2-methylenebicyclo-[l, 2, 2]-heptane), a hydrocarbon of the terpene series; colorless crystals with a characteristic camphor odor; melting point, 51°-52°C and boiling point, 160°-161°C.

Camphene is volatile, highly soluble in ether and benzene, less soluble in alcohol, and insoluble in water. It occurs in small quantities in turpentines and in essential pine oils, from which it may be isolated by distillation and freezing out. It is also found in lavender and fennel oils as well as in other essential oils. Camphene is produced industrially by the catalytic isomerization of pinene. Widely used in industry, it is an intermediate product in the synthesis of camphor. Chlorination of camphene yields very effective insecticides.

References in periodicals archive ?
Therefore, compared to decalin and camphene, which are highly toxic, petrolatum is more process friendly.
In contrast to DDT, which is easy to prepare with high purity, insecticides obtained by chlorination of benzene (hexachlorocyclohexane) and camphene (toxaphene) are used as isomer mixtures with 12% active [gammar]-hexachloro-cyclohexane (lindane) (Brooks 1977) and 0.
The absolute mean feeding time was higher for boxes with odour of the essential oil of Norway spruce (80%) and common juniper (19%); the opposite occurred for limonene (13% lower) and camphene (4% lower) (Table 1, Fig.
US 6,270,752 B1: Researcher Giancarlo Verona of Milan, Italy, has patented a composition to prevent and treat hair loss that contains a hydroalcoholic mixture of beta-pinene, camphene, beta-myrcene, limonene, cineole, camphor, linalol, bornyl acetate, isobornyl acetate, menthol, terpinen-ol and isoborneol monoterpens.
Year Achievement 1850 Prepared ethylene iodide from ethylene 1854 Converted ethylene into ethyl alcohol 1855 Made potassium formate by reacting carbon monoxide with caustic potash 1856 Prepared formic acid from oxalic acid and glycerine 1856 Obtained hexyne by reacting allyl iodide with sodium 1860 Prepared acetylene by passing electric sparks through a mixture of cyanogen and hydrogen 1866 Polymerized acetylene into benzene by heat treatment 1867 Obtained hydrocarbons by dry distillation of benzoates with salts of fatty acids 1869 Oxidized camphene to camphor 1881 Synthesized ethyl peroxide from ethyl ether by reaction with ozone
The results obtained in our study showed that major compounds of Chenopodium botrys aerial parts of Isfahan sample were: Camphene (24.
However, tobacco smoke is an extremely complex mixture, and recent GC/MS analyses of smokers' breath conducted in our laboratory have shown that tobacco smoke also includes several other compounds that contain m/z 95 and 67 as fragment ions, such as camphene (1,7,7-trimethylbicyclo [2.
Gilmore (1977) reported that water-deficit conditions increased the relative percentage of [Alpha]-pinene in loblolly pine (Pinus taeda) and decreased the concentrations of [Beta]-pinene, camphene, myrcene, and limonene.
Black spruce (Picea matiana) has virtually the same terpene composition (main components: 40-60% bornyl acetate; 10-20% camphene, etc; for the many minor and trace components see our publications) throughout its natural range from Newfoundland to northeastern British Columbia and the Yukon Territory.
2-1 List of major producers of camphene in China, as of July 2012
The monoterpene: ([+ or -])-[beta]-citronellol, ([+ or -])-citronellal, (-)-[alpha]-pinene, (-)-[beta]-pinene, [alpha]-terpinene, [gamma]-terpinene, [alpha]-terpineol, 1,8-cineole, citral, thymol, carvacrol, [alpha]+[beta]-thujone, camphene, ([+ or -])-camphor, (-)-borneol, p-cymene, myrcene, menthone, ([+ or -])menthol, geraniol, geranyl acetate, linalool, linalyl acetate, (R)-(-)-[alpha]-phellandrene, estragole, (R)-(-)-carvon, limonene showed potent phytotoxic activity and these compounds could be used both as potential bio-herbicides and lead structures for the development of new, potentially safe and ecocompatible pesticides (Martino et al.
Also, sabinene, [alpha]-terpinolene, 1-tetradecanol, P-phellandrene, 4-terpineol, myrcene, camphene, 1otanol, linalool oxide, nonanal, 1,8-cineol, limonene, cis-thujanol, [beta]-pinene and phytol was higher without treated plants with foliar spraying.