Method for separating lactone-containing high-molecular...

C - Chemistry – Metallurgy – 07 – D

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C07D 498/18 (2006.01) C07B 63/00 (2006.01) B01D 15/08 (2006.01)

Patent

CA 2384440

A method for separating a lactone-containing high-molecular weight compound comprising subjecting a mixture of a lactone-containing high-molecular weight compound having, as its side-chain, at least one of a lower alkenyl group and a lower alkoxy group and its analogous compound(s) to either one or both steps in any order of a step (A) for adsorbing the mixture to a nonionic adsorption resin and eluting with an aqueous solvent containing silver ions, and a step (B) for adsorbing the mixture to a basic active alumina and eluting with an organic solvent to separate each of the compounds.

Cette technique de séparation de composé de poids moléculaire élevé contenant de la lactone consiste à soumettre un mélange renfermant un composé de poids moléculaire élevé contenant de la lactone, ayant, au niveau de sa chaîne latérale, au moins un groupe alcényle et un groupe alcoxy de faibles poids moléculaires ainsi que son ou ses composés analogues, à l'une de ces opérations ou aux deux, dans n'importe quel ordre ; en l'occurrence l'opération A consiste en une adsorption du mélange sur une résine non ionique adsorbante suivie d'une élution à l'aide d'un solvant aqueux contenant des ions argent et l'opération B en une adsorption du mélange sur une alumine basique active suivie d'une élution à l'aide d'un solvant organique et ce, afin de séparer chaque composé.

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