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Can I read I-Oxydation catalytique des hydroxymethyl-2 phenols par des systemes MnCln/M0/O2 (M = Cu, Fe) on EtoBox?

I-Oxydation catalytique des hydroxymethyl-2 phenols par des systemes MnCln/M0/O2 (M = Cu, Fe) by Daniel Sparfel; Joële Baranne-Lafont; Nguyen Kim Cuong; Patrice Capdevielle; Michel Maumy is a Chemistry article available to read on EtoBox.

What is I-Oxydation catalytique des hydroxymethyl-2 phenols par des systemes MnCln/M0/O2 (M = Cu, Fe) about?

New oxygen-activating systems for dehydrogenation of 2-hydroxymethyl phenols I (a: R = tBu ; b : R = CH, ; c : R = H) to the corresponding salicylaldehyaks 3 are described. These systems are composed of a transition metal (MO = (M"CI,,= FenC12 Fe' or Cu"), a transition metal ion or CU'CI) in catalytic amount and molecular oxygen. The most active systems are Fe01FeCI,I021CH,0H and CuOICuCl + FeC121021CH,0H. Based on all the results so far obtained a mechanistic hypothesis is proposed. De nombreux reactifs realkent I'oxydation d'alcools primaires (notamment benzyliques) en aldehydcs, toutefois cette evolution est tres souvent accompagnee d'une oxydation ulterieure des aldehydes en acides carboxyliques. Une grande variCtC d'oxydants (eau oxygenic, hypochlorite de sodium', etc...) ainsi que des conditions experimentales particulieres (phase gazeuse2, uansfert de phase? etc...) ont CtC utilisees pour eviter cctte reaction parasite. Ces techniques ameliorent notablement les rendements mais ne permcttent pas de traiter Its molecules bifonctionnelles comportant une fonction sensible telle qu'un phenol. Cependant, il a CtC montre recemment que certains metaux (Pd4, Crs, Feb.', etc...), en p

Who reads I-Oxydation catalytique des hydroxymethyl-2 phenols par des systemes MnCln/M0/O2 (M = Cu, Fe)?

It is typically read by researchers, students, and practitioners in Chemistry.

Author
Daniel Sparfel; Joële Baranne-Lafont; Nguyen Kim Cuong; Patrice Capdevielle; Michel Maumy
Publisher
Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0040-4020)
Published
1990
Language
CY
Field
Chemistry (Physical Sciences)

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