Process for preparing 1,2,3,4 tetrahydro 9.10 diol-anthracene

Details Process for preparing 1,2,3,4 tetrahydro 9.10 diol-anthracene Process for preparing 1,2,3,4 tetrahydro 9.10 diol-anthracene

C - Chemistry, Metallurgy

09

B

260/236.2

C09B 1/08 (2006.01) C07C 39/12 (2006.01)

Patent

CA 1122213

ABREGE DESCRIPTIF Procédé pour la préparation du tétrahydro-1,2,3,4 anthracène-diol-9,10 caractérisé en ce que l'on effectue l'hydrogénation catalytique en phase liquide de la tétra- hydro-1,4,4a, 9a anthraquinone en hexahydro-1,2,3,4,4a 9a anthracène-dione-9,10 et l'isomérisation de l'hexahydro-1,2, 3,4,4a 9a anthracène-dione-9,10 en tétrahydro-1,2,3,4 anthra- cène-diol-9,10 en présence d'un acide. Ce procédé donne de bons rendements, il fait appel à une matière première peu coûteuse et facilement accessible.

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