АМБРОКС ДЛ

Химические свойства

3a,6,6,9a-Tetramethyldodecahydronaphtho[2,1-b]furan is a crystalline autoxidation product of ambrein with a typical ambergris odor. It is prepared from (?)-sclareol, a diterpene alcohol obtained from extraction of clary sage plants. Oxidative degradation to a lactone (“sclareolide”), hydrogenation of the latter to the corresponding diol, and dehydration yield the title compound.

Вхождение

Reported found in clary sage oil.

Использование

This ingredient provides warmth, richness and elegance to all areas of perfumery from sheer florals to modern ambers. Due to its power, best effects can be achieved at lower dosages, however, higher levels are often used to provide performance and substantivity.

Подготовка

Racemic sclareolide can be prepared by cyclization of homofarnesic acid in the presence of SnCl4 as a catalyst . Pure diastereomers are obtained by acid cyclization of (E)- and (Z)-4-methyl-6-(2,6,6-trimethylcyclohex-l(2)-enyl)-3- hexen-1-ol, prepared from 2-methyl-4-(2,6,6-trimethylcyclohex-l(2)-enyl)-2- butenal [394]. If the racemic sclareolide mixture is resolved into its enantiomers, the (–)-oxide may also be obtained by a totally synthetic route

Торговое название

Compound starting from natural sclareol: Ambermore, Ambermore-DL, Ambermore-EX (Aromor), Ambrox® Super (Firmenich), Ambroxan® (Kao), Ambroxide (Symrise); compound starting from homofarnesic acid derivatives: Ambrox® DL (Firmenich); compound starting from 2-methyl- 4-(2,6,6-trimethylcyclohex-l(2)enyl)-2-butenal: Cetalox® (Firmenich), Cetalor (Aromor).