4-(p-Methoxycinnamyloxy)-4′-methoxyazobenzene: a nematic liquid crystal for the gas-liquid chromatographic analysis of the stereochemistry of lepidopterous sex pheromones and related unsaturated fatty alcohols and derivatives was written by Lester, Ralph;Hall, David R.. And the article was included in Journal of Chromatography in 1980.Quality Control of (E)-Dodeca-9,11-dien-1-yl acetate The following contents are mentioned in the article:
A study of the gas chromatog. behavior of unsaturated fatty alcs. and acetates on a nematic liquid crystal, 4-(p-methoxycinnamyloxy)-4′-methoxyazobenzene, as stationary phase showed that excellent separations of isomers are possible within the nematic and supercooled temperature limits of this compound Separations of isomers of some mono- and di-unsaturated insect pheromones are given to illustrate the selectivity of this liquid crystal towards olefinic isomers. This study involved multiple reactions and reactants, such as (E)-Dodeca-9,11-dien-1-yl acetate (cas: 50767-78-7Quality Control of (E)-Dodeca-9,11-dien-1-yl acetate).
(E)-Dodeca-9,11-dien-1-yl acetate (cas: 50767-78-7) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Quality Control of (E)-Dodeca-9,11-dien-1-yl acetate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics