88973-77-7Relevant academic research and scientific papers
PREPARATION OF A SORBATE ESTER
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Page/Page column 5, (2016/05/24)
The present invention is a process for preparing a sorbate ester comprising the steps of: a) contacting together in a reaction vessel a first organic solvent, sorbic acid, a catalytic amount of TiCl4, an anti-oxidant, and an alkylene oxide under conditions sufficient to form a mixture of the sorbate ester and residual water-soluble impurities; then b) separating the sorbate ester from the residual water-soluble impurities by washing. Sorbate esters can be prepared in an efficient and cost-effective manner by the process of the present invention.
PREPARATION OF SORBATE ESTER
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Page/Page column 5, (2016/06/06)
Disclosed is a process for preparing a hydroxyalkyl sorbate comprising the steps of of: a) contacting together in a reaction vessel a solvent, sorbic acid, a transition metal halide catalyst, an anti-oxidant, and an alkylene oxide under conditions sufficient to form the hydroxyalkyl sorbate; b) removing the solvent in vacuo, wherein the anti-oxidant is characterized by the following formula or a carboxylic acid salt thereof: wherein Y, x, and R1 are defined herein. The process provides a convenient way of preparing hydroxyalkyl sorbates in high yield and purity without complicated workup steps.
Polyenic acids. I. Antifungal and bacteriostatic activities of hexa-2,4 dienoic acid derivatives
Le Baut,Sparfel,Clairc,et al.
, p. 441 - 445 (2007/10/02)
Synthesis of esters and amides of 2,4-(2 E, 4 E) hexadienoic acid are reported. The authors have tried to modulate the polarity of these compounds by introducing sequences with hydroxyl, amino groups, ether, thioether functions and halogen atoms or heterocycles. A gain in bacteriostatic activity, compared with sorbic acid has been stated in some cases, it is accompanied by either a breakdown (compounds 3, 38, 51, and 54) or a maintenance of fungistatic activity (compounds 5, 10 and 17).
