Eniricerche S.p.a.

Agip S.p.a.

Malesci Istituto Farmacobiologico S.p.a.

Eniricerche S.p.a.-and- Snamprogetti S.p.a.

Eniricerche S.p.a. and Agip S.p.a.

Fabrizio Bonaccorsi

Arnaldo Roggero

Thomas Paul Lockhart

Rosario Pappa

Edoardo Platone

Aldo Prevedello

Armando Marcotullio

Danilo Giannotti

Umberto Cova

Elio Donati

Valentina Fedi

Mario Riocci

This invention relates to a novel process for synthesizing the product ibodutant shown in the figure below, consisting of a small number of high-yield steps involving reagents and solvents with low environmental impact, characterized by the coupling of two portions, compounds (3) and (4), one of which (3) is synthesized by coupling of 6-methyl-2-benzo[b]thiophenecarboxylic acid (1) with 1-amino-alpha-alpha-cyclopentan carboxylic acid and subsequent cyclization with oxazolone, while the other, compound (4), is obtained from suitable highly selective functionalizations of 4-aminomethylpiperidine (2).

Process for the preparation of ibodutant (MEN15596) and related intermediates

Gellable aqueous compositions containing polymers with special chelating

New acrylamide copolymers formed by (meth)acrylamide benzene dicarboxylic monomer units in accordance with the following formula: ##STR1## wherein R is H or CH.sub.3 ; X is H or an alkaline metal or NH.sub.4 ; and wherein the COOX groups may be in ortho-, meta- or para- position in relation to each other, preferably being in ortho- position to each other; and of (meth)acrylamide monomer (II) units.

Acrylamide copolymers containing (meth)acrylamide benzene dicarboxylic

New homopolymers formed by malonic (meth)acrylamide monomer units according to the following formula: ##STR1## wherein R is H or CH.sub.3 ; X is H or an alkaline metal or NH.sub.4.sup.+ ; and copolymers formed by (meth)acrylamide monomer units (I) and monomer units (II).

Polymers and copolymers containing malonic (meth)acrylamide units

Storage-stable, pumpable, concentrated dispersions of coal in water contain a non-ionic additive constituted by a polymer containing polyethoxy chains grafted onto suitably functionalized polystyrenes having a molecular weight comprised within the range of from 500 to 15000.

Stabilizer and fluidifier additives for dispersions of coal in water

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Livorno, Italy

Fabrizio Bonaccorsi