RefDoc
Haut

Faire une nouvelle recherche
Make a new search
Lancer la recherche


Titre du document / Document title

α-Terpineol from hydration of crude sulfate turpentine oil

Auteur(s) / Author(s)

PAKDEL Hooshang (1) ; SARRON Stéphanie (2) ; ROY Christian (1 2) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Pyrovac Institute Inc., 333 rue Franquet, Ste-Foy, Québec G1P 4C7, CANADA
(2) Département de Génie Chimique, Université Laval, Sainte-Foy, Québec G1K 7P4, CANADA

Résumé / Abstract

Hydration of α-pinene under various conditions was studied and compared with the literature. Optimal reaction conditions have been established for the hydration of α-pinene and crude turpentine oil in the absence of catalyst and using a low volume of acetone. A detailed reaction product analysis is reported. The main hydration product, α-terpineol, was obtained at a yield of 67 wt % of the initial α-pinene by reacting with 15% aqueous sulfuric acid and an excess of acetone in an oil bath heated to 80-85 °C over the course of 4 h. A progressive transformation of α-terpineol to 4-(2-hydroxypropyl)-1-methylcyclohexanol (1,8-terpine) takes place as the hydration time exceeds 4 h. A crude turpentine oil sample was also hydrated under conditions similar to those of α-pinene. The α-terpineol yield was 77 wt % of the initial α-pinene in the crude turpentine oil. The chemical analysis of the crude turpentine oil before and after hydration was carried out, and the distribution of the products was discussed.

Revue / Journal Title

Journal of agricultural and food chemistry    ISSN  0021-8561   CODEN JAFCAU 

Source / Source

2001, vol. 49, no9, pp. 4337-4341 (14 ref.)

Langue / Language

Anglais

Editeur / Publisher

American Chemical Society, Washington, DC, ETATS-UNIS  (1953) (Revue)

Mots-clés anglais / English Keywords

Pinene

;

Chemical analysis

;

Emulsifier

;

Catalytic reaction

;

Chemical reaction

;

Turpentine

;

Vegetable oil

;

Essential oil

;

Hydration

;

Mots-clés français / French Keywords

α-Terpinéol

;

Pinène

;

Analyse chimique

;

Emulsifiant

;

Réaction catalytique

;

Réaction chimique

;

Térébenthine

;

Huile végétale

;

Huile essentielle

;

Hydratation

;

Mots-clés espagnols / Spanish Keywords

Pineno

;

Análisis químico

;

Emulsionador

;

Reacción catalítica

;

Reacción química

;

Trementina

;

Aceite vegetal

;

Aceite esencial

;

Hidratación

;

Localisation / Location

INIST-CNRS, Cote INIST : 7332, 35400009955056.0330

Nº notice refdoc (ud4) : 14059103



Faire une nouvelle recherche
Make a new search
Lancer la recherche
Bas