This invention relates to synthetic method of a ( E, E) - geranyl
linalool. The invention takes (E) -
nerolidol as
raw material. The hydroxyl is shield by dihydropyrane,
gain ( E) -
nerolidol tetrahydropyrane aether;
selenium dioxide and teri-butyl hydroperoxide selectively oxidize the anti-form methyl of ( E) -
nerolidol tetrahydropyrane aether to
gain anti-form allyl position hydroxylated oxidative product ( E, E) - 12 - hydroxy nerolidol tetrahydropyrane aether, transit halogenating reaction to
gain ( E, E) - 12 - halogeno- nerolidol tetrahydropyrane aether, then take reaction with
isopropyl methyl ketone that is selectively divested one
proton by diisopropyl amido
lithium, generate ( 6E, 10E) - 2, 6, 10, 14 - tetramethyl - 14 - ( tetrahydropyrane - 2 -
oxygen) -16 - 6, 10, 15 - triene - 3 -
ketone, use
sodium borohydride to reduce to gain ( 6E, 10E) - 2, 6, 10, 14 - tetramethyl - 14 - ( tetrahydropyrane - 2 -
oxygen) -16 - 6, 10, 15 - triene - 3 -
alcohol, takes reaction with
sulfonyl chloride or sulphonic acid ester with alkali presence to gain ( 6E, 10E) - 2, 6, 10, 14 - tetramethyl - 14 - ( tetrahydropyrane - 2
oxygen) -16 - 6, 10, 15 - triene - 3 - alcoholic sulphonic acid ester, then divide sulphonic acid ester group under base
catalysis to gain ( E, E) - geranyl
linalool tetrahydropyrane aether, and by deprotection to gain ( E, E) - geranyl
linalool. ËFor the configuration of ( E) - nerolidol 3 position
tertiary carbon is not influenced in the course of reaction, if use ( E) - nerolidol that has optical activity as
raw material, should gain optical active ( E, E) - geranyl linalool. ((E, E)-geranyl linalool can replace
Teprenone and such type medicament intermediate,
natural product intermediate,
insect pheromone and spice etc.