Item request has been placed! ×
Item request cannot be made. ×
loading  Processing Request

Flow Chemistry Processes for the Catalytic Functionalisation of Biomass Derivative ; Procédés de chimie en flux pour la fonctionnalisation catalytique de dérivés de la biomasse

Item request has been placed! ×
Item request cannot be made. ×
loading   Processing Request
  • معلومة اضافية
    • Contributors:
      Institut Parisien de Chimie Moléculaire (IPCM); Chimie Moléculaire de Paris Centre (FR 2769); École normale supérieure - Paris (ENS-PSL); Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP); Université Paris Sciences et Lettres (PSL)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris); Université Paris Sciences et Lettres (PSL)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL); Université Paris Sciences et Lettres (PSL)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS); Sorbonne Université; Julie Oble; Juliette Blanchard
    • بيانات النشر:
      HAL CCSD
    • الموضوع:
      2022
    • Collection:
      ESPCI ParisTech: HAL (Ecole Supérieure de Physique et Chimie Industrielles)
    • نبذة مختصرة :
      In order to move towards a more sustainable synthetic chemistry, it is now necessary to synthesize intermediates and high value-added products from biomass substrates rather than from fossil resources. Furthermore, the valorization of agricultural waste is one of the keystones of a circular economy. In this sense, furfural has been listed as a promising platform that can be obtained from food crop residues and wood industry waste. Indeed, the dehydration of lignocellulose from these agricultural wastes gives access to furanic derivatives. Their selective functionalization is currently an emerging field and is the subject of many research efforts. In particular, the activation and direct functionalization of C–H bonds catalyzed by transition metals has become essential to develop step and atom economical syntheses. Moreover, the use of heterogeneous catalysts for this purpose is more in line with the principles of a greener chemistry by allowing, in addition to the easy recycling of the used catalyst, a better purification of the obtained product. Furthermore, the combination of heterogeneous catalysis with flow chemistry technology offers a very powerful tool for large-scale applications. In this manuscript, we report the C3-functionalization of furfurylimines by homogeneous ruthenium catalysis in continuous flow. Then, the heterogenization of ruthenium and palladium catalysts was studied in order to develop functionalizations in heterogeneous flow catalysis of furfural derivatives. In this direction, promising results have been obtained for the C5-arylation of furfural with a palladium catalyst supported on mesoporous silica and a continuous flow application has been successfully developped. ; Afin d’évoluer vers une chimie de synthèse plus durable, il est aujourd’hui nécessaire de synthétiser des intermédiaires et des produits à haute valeur ajoutée à partir de substrats provenant de la biomasse plutôt que de ressources fossiles. En outre, la valorisation des déchets agricoles est l’une des clés de voûte d’une ...
    • Relation:
      NNT: 2022SORUS453; tel-04011392; https://theses.hal.science/tel-04011392; https://theses.hal.science/tel-04011392/document; https://theses.hal.science/tel-04011392/file/KIALA_KINKUTU_these_2022.pdf
    • الدخول الالكتروني :
      https://theses.hal.science/tel-04011392
      https://theses.hal.science/tel-04011392/document
      https://theses.hal.science/tel-04011392/file/KIALA_KINKUTU_these_2022.pdf
    • Rights:
      info:eu-repo/semantics/OpenAccess
    • الرقم المعرف:
      edsbas.E5E10CF5