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Ces travaux ont pour finalit la pr paration des acides carboxyliques partir de la d gradation de ressources glucidiques Des synth ses assist es par micro-ondes et dans des conditions sans solvants combin es l utilisation de supports solides ont t privil gi es dans un souci environnemental et nerg tique Dans un premier temps la d gradation alcaline de glucides simples tels que le glucose le fructose le mannose et le saccharose sur support alumine Al2O3 a t investigu e Par la suite une deuxi me voie de synth se utilisant des oxydants forts galement support s sur alumine a t tudi e Puis la d gradation acide du glucose ou du fructose partir d un acide jouant le r le la fois de support solide et de catalyseur a t r alis e Dans ces travaux les plans d exp riences ont t utilis s dans le but de minimiser les essais d une part mais galement pour tudier les effets des diff rents param tres op ratoires en vue d une optimisation des proc d s This work aims the preparation of carboxylic acids starting from glucidic resources degradation Microwaves organic syntheses under solventless conditions combined with the use of solid supports were privileged in an environmental and energy concern Initially the alkaline degradation of simple carbohydrates such as glucose fructose mannose and saccharide on support alumina Al2O3 was investigated Thereafter a second way of synthesizing carboxylic acids using strong oxidants also supported on alumina was studied Finally the acid degradation of glucose or fructose starting from an acid with both a catalytic and a solid support properties was carried out In this work the experimental designs were often used with an aim of minimizing the experiments on the one hand but also to study the effects of the various operational parameters for an optimization of the processes AMIENS-BU Sciences 800212103 Sudoc Sudoc France FR

Carbohydrates oxidation using microwaves technologies to obtain carboxylic acids / Oxydation des sucres via la technolog...

Oxydation des sucres via la technologie des micro-ondes, en vue d obtenir des acides carboxyliques

Publication search with Sciences. Chimie organique as keyword

Carbohydrates oxidation using microwaves technologies to obtain carboxylic acids / Oxydation des sucres via la technolog...

Oxydation des sucres via la technologie des micro-ondes, en vue d obtenir des acides carboxyliques

Publication search
with Sciences. Chimie organique as keyword