Istituto Guido Donegani

Enichem S.p.a

Instituto Guido Donegani

Francesco Gementi

Raffaele Ungarelli

Loris Sogli

Marco Ricci

Cecilia Querci

Riccardo Berte

Francesco Panella

Disclosed is the synthesis of terminal diols, which are organic intermediates used in order to produce polymeric materials, by starting from terminal diolefins, which synthesis is based on the oxidation of diolefins to yield diepoxides, in a double-phase aqueous-organic system with hydrogen peroxide and in the presence of catalysts soluble in the organic phase, followed by a reaction of reduction of the resulting diepoxides.

Synthesis of diols, for use as intermediates for polymeric materials, by

A process of producing a silanic or siloxanic compound containing at least one cycloalkyl ring by the hydrogenation of a corresponding compound containing at least one aromatic ring, in the presence of a Raney nickel catalyst having a granulometry comprised essentially between 10 and 150 micrometers and a surface area of at least 80 m.sup.2 /g.

Process of producing a silanic or siloxanic compound containing at least

A process for producing a silane or siloxane compound containing at least one cycloalkyl ring by hydrogenation of a corresponding derivative containing at least one aromatic ring in the presence of a Raney nickel catalyst modified with chromium.

Process for producing a silane or siloxane compound containing a

A process of producing a silanic or siloxanic compound containing at least one cycloalkyl ring by hydrogenation of a corresponding compound containing at least one aromatic ring, in solution, in the presence of a catalyst comprising palladium, supported on active carbon and at a pressure equal to or higher than 10 bar.

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Milan, Italy

Francesco Gementi