Use of hydrotalcite-structure compounds in the preparation...

C - Chemistry – Metallurgy – 07 – C

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C07C 49/24 (2006.01) B01J 21/00 (2006.01) B01J 23/00 (2006.01) B01J 23/06 (2006.01) B01J 23/74 (2006.01) C07C 45/72 (2006.01) C07C 45/74 (2006.01) C07C 49/17 (2006.01)

Patent

CA 2253761

L'invention concerne l'utilisation de composés de structure de type hydrotalcite pour la préparation de composés carbonylés .beta.-hydroxy et/ou .alpha.-.beta. insaturés par catalyse basique hétérogène. Les composés en question sont de formule: [M(II)1-X, M(III)x (OH)2+x], m(H2O) (I) dans laquelle M(II) représente un cation divalent choisi dans le groupe constitué par le nickel, le zinc, le cobalt, le magnésium ou le mélange de deux ou plus des métaux précités; M(III) représente un cation trivalent tels que l'aluminium, le gallium,, le fer, le chrome, à l'exclusion du composé de formule (I) dans laquelle M(II) est le magnésium et M(III) est l'aluminium, x est compris entre 0,20 et 0,33 et m ~ 1.

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