Versalis S.p.a.

Mirco Nodari

Martino Colonna

Aldo Longo

Daniele Delledonne

Nicola Vecchini

Armando Galeotti

Claudio Gioia

A Method for the synthesis of ω-amino acids or derivatives thereof, includes the following steps synthesis of an ω-oxoester/linear acid by hydroformylation by CO/Hmixture of at least one monounsaturated acid/ester, the monounsaturated acid/ester preferably resulting from a reaction of metathesis of oils/fats from renewable sources; synthesis of a linear ω-amino acid/ester and/or ω-aminoamide, subjecting the aforementioned ω-oxoester/linear acid to reductive amination; and possible synthesis of a linear ω-amino acid, subjecting the aforementioned linear ω-aminoester and/or ω-aminoamide to hydrolysis.

Method for the preparation of omega-amino-carboxylic acids and derivatives thereof

A method for synthesizing regioregular polyesters, starting from asymmetric diols, may provide the polymer ordered structure and advantageous physical-chemical properties. Such methods can make it is possible to obtain regioregular polyesters having high glass transition temperatures Tand crystalline properties. In the case in which the asymmetric diols are used in a pure enantiomeric form, with respect to the chiral carbon bound to the secondary hydroxyl, through the above-mentioned method it is possible to obtain regioregular and stereoregular polyesters, which may have thermal and crystalline properties further ameliorative with respect to non-chiral regioregular polymers.

Method of regioselective synthesis of polyesters from asymmetric diols

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Guidizzolo, Italy

Mirco Nodari