A highly stereospecific procedure for the transformation of allylic alcohols into 1,3-dienes was written by Yasuda, Arata;Tanaka, Shin;Yamamoto, Hisashi;Nozaki, Hitosi. And the article was included in Bulletin of the Chemical Society of Japan in 1979.Electric Literature of C14H24O2 The following contents are mentioned in the article:
The title synthesis involves (1) epoxidation of allylic alcs. by Me3COOH in the presence of a V catalyst followed by trimethylsilylation, (2) specific oxirane ring opening by means of diethylaluminum 2,2,6,6-tetramethylpiperidide and subsequent desilylation producing 3-ene-1,2-diols, and (3) removal of both hydroxyl groups through bromination with a mixture of PBr3 and CuBr followed by Zn debromination. The sequence of reactions was extended successfully to the preparations of β-myrcene from nerol, trans-β-ocimene from geraniol in a specific way, and α- and β-farnesenes from their biol. precursors. A C12 sex pheromone of red bollworm moth was prepared efficiently by this method from cyclododecene. This study involved multiple reactions and reactants, such as (E)-Dodeca-9,11-dien-1-yl acetate (cas: 50767-78-7Electric Literature of C14H24O2).
(E)-Dodeca-9,11-dien-1-yl acetate (cas: 50767-78-7) 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.Electric Literature of C14H24O2
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics