Isopropenyl terpenes

Isopropenyl terpenes. The most convenient synthesis of the natural sesquiterpene ( )-iso-a-curcumene (4) employs the general method of van der Gen (6, 380-381). 

Isoprenylation of Isopropenyl groups.1 Cyclic terpenes substituted by an isopropenyl group can be converted into sesquiterpenes with the bisabolane skeleton by addition of HOC1 under biphasic conditions to give an allylic chloride (10, 208-209) followed by a zinc-induced reaction with isovaleraldehyde to form an isomeric mixture of homoallylic alcohols. 

Isopentenyl pyrophophate, 1028—1030, 1033-1034, 1044 Isoprene, 383, 1026 Isoprene rule, 1028 Isoprenoid compounds. See Terpenes Isopropenyl group, 169—170 Isopropyl alcohol, 19, 128 industrial preparation of, 224 properties of, 581... 

Synonyms Carvol 2-Cyclohexen-1-one, 2-methyl-5-(1 -methylethenyl)- 6,8(9)-p-Menthadien-2-one A-1-Methyl-4-isopropenyl-6-cyclohexen-2-one 2-Methyl-5-(1-methylethenyl)-2-cyclohexen-1-one Classification Terpene Empirical CioHuO... 

Synonyms limonene cajeputene cinene ciene i-methyl-4-(i-methylethenyl)cyclohexene p-mentha-i,8-diene Acintene DP dipentene cyclil decene 4-isopropenyl-i-methyl-cyclohexene Dipenten DL-p-mentha-i.8-diene Eulimen isopropenyl-i-methyl-i-cyclohexene mentha-i,8-diene DL-mentha-i,8-diene menthadiene methyl-4-(i-methyletheny)cyclohexene methyl-4-isopropenyl-i-cyclohexene methyl-4-isopropenylcyclohexene monocyclic terpene hydrocarbons Nesol terpodiene 4-(i-methylethenyl)-i-methyl-cyclohexene Uses pressure stabilizer in oils solvent for lacquers, inks, polishes, etc. A... 

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