TY - JOUR A1 - Sutherland, GK A1 - Gortner, WA T1 - Studies of a Quinyl-p-coumarate in the Pineapple Plant (Ananas comosus var. cayenne) JF - Australian Journal of Chemistry JO - Aust. J. Chem. Y1 - 1959 VL - 12 IS - 2 SP - 240 EP - 246 KW - UR - https://doi.org/10.1071/CH9590240 N2 - An ester is found in small concentrations in vegetative pineapple plants, with spectral characteristics in the ultraviolet of an ester of p-coumaric acid. p-Coumaric acid is obtained after hydrolysis, and the remaining aqueous hydrolysate indicates the presence of quinic acid lactone on chromatograms. On the basis of neutral equivalent determinations, boric acid conductivity and periodate oxidation experiments, and analyses following mild hydrolysis, the structure of the ester is suggested to be a quinyl-di-p-coumarate. It serves in the plant as a cofactor for pineapple indoleacetic acid oxidase. ER -