New stereo- and regioselective synthesis of humulene by means of the palladium-catalyzed cyclization of haloalkenylboranes was written by Miyaura, Norio;Suginome, Hiroshi;Suzuki, Akira. And the article was included in Tetrahedron Letters in 1984.Quality Control of (2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate The following contents are mentioned in the article:
Humulene (I) was prepared regio- and stereospecifically in many steps from geranyl acetate, chloride, or bromide via. Pd-catalyzed cyclization of haloalkenyldisiamylboranes II (R = Cl, Br). This study involved multiple reactions and reactants, such as (2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate (cas: 37905-02-5Quality Control of (2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate).
(2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate (cas: 37905-02-5) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Quality Control of (2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics